/*
 * Broadcom Dongle Host Driver (DHD), Linux-specific network interface
 * Basically selected code segments from usb-cdc.c and usb-rndis.c
 *
 * Copyright (C) 1999-2019, Broadcom.
 *
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 *
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions
 * of the license of that module.  An independent module is a module which is
 * not derived from this software.  The special exception does not apply to any
 * modifications of the software.
 *
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 *
 * <<Broadcom-WL-IPTag/Open:>>
 *
 * $Id: dhd_linux.c 822756 2019-05-30 13:20:26Z $
 */

#include <typedefs.h>
#include <linuxver.h>
#include <osl.h>
#include <bcmstdlib_s.h>
#ifdef SHOW_LOGTRACE
#include <linux/syscalls.h>
#include <event_log.h>
#endif /* SHOW_LOGTRACE */

#if defined(PCIE_FULL_DONGLE) || defined(SHOW_LOGTRACE)
#include <bcmmsgbuf.h>
#endif /* PCIE_FULL_DONGLE */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/inetdevice.h>
#include <linux/rtnetlink.h>
#include <linux/etherdevice.h>
#include <linux/random.h>
#include <linux/spinlock.h>
#include <linux/ethtool.h>
#include <linux/fcntl.h>
#include <linux/fs.h>
#include <linux/ip.h>
#include <linux/reboot.h>
#include <linux/notifier.h>
#include <linux/irq.h>
#include <net/addrconf.h>
#ifdef ENABLE_ADAPTIVE_SCHED
#include <linux/cpufreq.h>
#endif /* ENABLE_ADAPTIVE_SCHED */
#include <linux/rtc.h>
#include <linux/namei.h>
#include <asm/uaccess.h>
#include <asm/unaligned.h>
#include <dhd_linux_priv.h>

#include <epivers.h>
#include <bcmutils.h>
#include <bcmendian.h>
#include <bcmdevs.h>
#include <bcmiov.h>

#include <ethernet.h>
#include <bcmevent.h>
#include <vlan.h>
#include <802.3.h>

#include <dhd_linux_wq.h>
#include <dhd.h>
#include <dhd_linux.h>
#include <dhd_linux_pktdump.h>
#ifdef DHD_WET
#include <dhd_wet.h>
#endif /* DHD_WET */
#ifdef PCIE_FULL_DONGLE
#include <dhd_flowring.h>
#endif // endif
#include <dhd_bus.h>
#include <dhd_proto.h>
#include <dhd_config.h>
#ifdef WL_ESCAN
#include <wl_escan.h>
#endif
#include <dhd_dbg.h>
#include <dhd_dbg_ring.h>
#include <dhd_debug.h>
#ifdef CONFIG_HAS_WAKELOCK
#include <linux/wakelock.h>
#endif // endif
#if defined(WL_CFG80211)
#include <wl_cfg80211.h>
#endif /* WL_CFG80211 */
#ifdef PNO_SUPPORT
#include <dhd_pno.h>
#endif // endif
#ifdef RTT_SUPPORT
#include <dhd_rtt.h>
#endif // endif

#ifdef CSI_SUPPORT
#include <dhd_csi.h>
#endif /* CSI_SUPPORT */

#ifdef CONFIG_COMPAT
#include <linux/compat.h>
#endif // endif

#if defined(CONFIG_SOC_EXYNOS8895) || defined(CONFIG_SOC_EXYNOS9810) ||        \
    defined(CONFIG_SOC_EXYNOS9820)
#include <linux/exynos-pci-ctrl.h>
#endif /* CONFIG_SOC_EXYNOS8895 || CONFIG_SOC_EXYNOS9810 ||                    \
          CONFIG_SOC_EXYNOS9820 */

#ifdef DHD_L2_FILTER
#include <bcmicmp.h>
#include <bcm_l2_filter.h>
#include <dhd_l2_filter.h>
#endif /* DHD_L2_FILTER */

#ifdef DHD_PSTA
#include <dhd_psta.h>
#endif /* DHD_PSTA */

#ifdef AMPDU_VO_ENABLE
#include <802.1d.h>
#endif /* AMPDU_VO_ENABLE */

#if defined(DHDTCPACK_SUPPRESS) || defined(DHDTCPSYNC_FLOOD_BLK)
#include <dhd_ip.h>
#endif /* DHDTCPACK_SUPPRESS || DHDTCPSYNC_FLOOD_BLK */
#include <dhd_daemon.h>
#ifdef DHD_4WAYM4_FAIL_DISCONNECT
#include <dhd_eapol.h>
#endif /* DHD_4WAYM4_FAIL_DISCONNECT */
#ifdef DHD_DEBUG_PAGEALLOC
typedef void (*page_corrupt_cb_t)(void *handle, void *addr_corrupt, size_t len);
void dhd_page_corrupt_cb(void *handle, void *addr_corrupt, size_t len);
extern void register_page_corrupt_cb(page_corrupt_cb_t cb, void *handle);
#endif /* DHD_DEBUG_PAGEALLOC */

#define IP_PROT_RESERVED 0xFF

#ifdef DHD_4WAYM4_FAIL_DISCONNECT
static void dhd_m4_state_handler(struct work_struct *work);
#endif /* DHD_4WAYM4_FAIL_DISCONNECT */

#ifdef DHDTCPSYNC_FLOOD_BLK
static void dhd_blk_tsfl_handler(struct work_struct *work);
#endif /* DHDTCPSYNC_FLOOD_BLK */

#ifdef WL_NATOE
#include <dhd_linux_nfct.h>
#endif /* WL_NATOE */

#if defined(SOFTAP)
extern bool ap_cfg_running;
extern bool ap_fw_loaded;
#endif // endif

#ifdef FIX_CPU_MIN_CLOCK
#include <linux/pm_qos.h>
#endif /* FIX_CPU_MIN_CLOCK */

#ifdef SET_RANDOM_MAC_SOFTAP
#ifndef CONFIG_DHD_SET_RANDOM_MAC_VAL
#define CONFIG_DHD_SET_RANDOM_MAC_VAL 0x001A11
#endif // endif
static u32 vendor_oui = CONFIG_DHD_SET_RANDOM_MAC_VAL;
#endif /* SET_RANDOM_MAC_SOFTAP */

#ifdef ENABLE_ADAPTIVE_SCHED
#define DEFAULT_CPUFREQ_THRESH                                                 \
    1000000 /* threshold frequency : 1000000 = 1GHz */
#ifndef CUSTOM_CPUFREQ_THRESH
#define CUSTOM_CPUFREQ_THRESH DEFAULT_CPUFREQ_THRESH
#endif /* CUSTOM_CPUFREQ_THRESH */
#endif /* ENABLE_ADAPTIVE_SCHED */

/* enable HOSTIP cache update from the host side when an eth0:N is up */
#define AOE_IP_ALIAS_SUPPORT 1

#ifdef PROP_TXSTATUS
#include <wlfc_proto.h>
#include <dhd_wlfc.h>
#endif // endif

#include <wl_ohos.h>

/* Maximum STA per radio */
#define DHD_MAX_STA 32

const uint8 wme_fifo2ac[] = {0, 1, 2, 3, 1, 1};
const uint8 prio2fifo[8] = {1, 0, 0, 1, 2, 2, 3, 3};
#define WME_PRIO2AC(prio) wme_fifo2ac[prio2fifo[(prio)]]

#ifdef ARP_OFFLOAD_SUPPORT
void aoe_update_host_ipv4_table(dhd_pub_t *dhd_pub, u32 ipa, bool add, int idx);
static int dhd_inetaddr_notifier_call(struct notifier_block *this,
                                      unsigned long event, void *ptr);
static struct notifier_block dhd_inetaddr_notifier = {
    .notifier_call = dhd_inetaddr_notifier_call};
/* to make sure we won't register the same notifier twice, otherwise a loop is
 * likely to be created in kernel notifier link list (with 'next' pointing to
 * itself)
 */
static bool dhd_inetaddr_notifier_registered = FALSE;
#endif /* ARP_OFFLOAD_SUPPORT */

#if defined(CONFIG_IPV6) && defined(IPV6_NDO_SUPPORT)
int dhd_inet6addr_notifier_call(struct notifier_block *this,
                                unsigned long event, void *ptr);
static struct notifier_block dhd_inet6addr_notifier = {
    .notifier_call = dhd_inet6addr_notifier_call};
/* to make sure we won't register the same notifier twice, otherwise a loop is
 * likely to be created in kernel notifier link list (with 'next' pointing to
 * itself)
 */
static bool dhd_inet6addr_notifier_registered = FALSE;
#endif /* CONFIG_IPV6 && IPV6_NDO_SUPPORT */

#if defined(CONFIG_PM_SLEEP)
#include <linux/suspend.h>
volatile bool dhd_mmc_suspend = FALSE;
DECLARE_WAIT_QUEUE_HEAD(dhd_dpc_wait);
#endif /* defined(CONFIG_PM_SLEEP) */

#if defined(OOB_INTR_ONLY) || defined(FORCE_WOWLAN)
extern void dhd_enable_oob_intr(struct dhd_bus *bus, bool enable);
#endif /* defined(OOB_INTR_ONLY) */
static void dhd_hang_process(struct work_struct *work_data);
MODULE_LICENSE("GPL and additional rights");

#if defined(MULTIPLE_SUPPLICANT)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
DEFINE_MUTEX(_dhd_mutex_lock_);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) */
#endif
static int dhd_suspend_resume_helper(struct dhd_info *dhd, int val, int force);

#ifdef CONFIG_BCM_DETECT_CONSECUTIVE_HANG
#define MAX_CONSECUTIVE_HANG_COUNTS 5
#endif /* CONFIG_BCM_DETECT_CONSECUTIVE_HANG */

#include <dhd_bus.h>

#ifdef DHD_ULP
#include <dhd_ulp.h>
#endif /* DHD_ULP */

#ifndef PROP_TXSTATUS
#define DBUS_RX_BUFFER_SIZE_DHD(net)                                           \
    (net->mtu + net->hard_header_len + dhd->pub.hdrlen)
#else
#define DBUS_RX_BUFFER_SIZE_DHD(net)                                           \
    (net->mtu + net->hard_header_len + dhd->pub.hdrlen + 128)
#endif // endif

#ifdef PROP_TXSTATUS
extern bool dhd_wlfc_skip_fc(void *dhdp, uint8 idx);
extern void dhd_wlfc_plat_init(void *dhd);
extern void dhd_wlfc_plat_deinit(void *dhd);
#endif /* PROP_TXSTATUS */
#ifdef USE_DYNAMIC_F2_BLKSIZE
extern uint sd_f2_blocksize;
extern int dhdsdio_func_blocksize(dhd_pub_t *dhd, int function_num,
                                  int block_size);
#endif /* USE_DYNAMIC_F2_BLKSIZE */

/* Linux wireless extension support */
#if defined(WL_WIRELESS_EXT)
#include <wl_iw.h>
extern wl_iw_extra_params_t g_wl_iw_params;
#endif /* defined(WL_WIRELESS_EXT) */

#ifdef CONFIG_PARTIALSUSPEND_SLP
#include <linux/partialsuspend_slp.h>
#define CONFIG_HAS_EARLYSUSPEND
#define DHD_USE_EARLYSUSPEND
#define register_early_suspend register_pre_suspend
#define unregister_early_suspend unregister_pre_suspend
#define early_suspend pre_suspend
#define EARLY_SUSPEND_LEVEL_BLANK_SCREEN 50
#else
#if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND)
#include <linux/earlysuspend.h>
#endif /* defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND) */
#endif /* CONFIG_PARTIALSUSPEND_SLP */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 11, 0))
#include <linux/nl80211.h>
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 11, 0)) */

#if defined(PKT_FILTER_SUPPORT) && defined(APF)
static int __dhd_apf_add_filter(struct net_device *ndev, uint32 filter_id,
                                u8 *program, uint32 program_len);
static int __dhd_apf_config_filter(struct net_device *ndev, uint32 filter_id,
                                   uint32 mode, uint32 enable);
static int __dhd_apf_delete_filter(struct net_device *ndev, uint32 filter_id);
#endif /* PKT_FILTER_SUPPORT && APF */

#if defined(WL_CFG80211) && defined(DHD_FILE_DUMP_EVENT) &&                    \
    defined(DHD_FW_COREDUMP)
static int dhd_wait_for_file_dump(dhd_pub_t *dhdp);
#endif /* WL_CFG80211 && DHD_FILE_DUMP_EVENT && DHD_FW_COREDUMP */

#if defined(ARGOS_NOTIFY_CB)
/* ARGOS notifer data */
static struct notifier_block argos_wifi; /* STA */
static struct notifier_block argos_p2p;  /* P2P */
argos_rps_ctrl argos_rps_ctrl_data;
#endif // endif

#ifdef DHD_FW_COREDUMP
static int dhd_mem_dump(void *dhd_info, void *event_info, u8 event);
#endif /* DHD_FW_COREDUMP */

#ifdef DHD_LOG_DUMP

struct dhd_log_dump_buf g_dld_buf[DLD_BUFFER_NUM];

/* Only header for log dump buffers is stored in array
 * header for sections like 'dhd dump', 'ext trap'
 * etc, is not in the array, because they are not log
 * ring buffers
 */
dld_hdr_t dld_hdrs[DLD_BUFFER_NUM] = {
    {GENERAL_LOG_HDR, LOG_DUMP_SECTION_GENERAL},
    {PRESERVE_LOG_HDR, LOG_DUMP_SECTION_PRESERVE},
    {SPECIAL_LOG_HDR, LOG_DUMP_SECTION_SPECIAL}};

static int dld_buf_size[DLD_BUFFER_NUM] = {
    LOG_DUMP_GENERAL_MAX_BUFSIZE,  /* DLD_BUF_TYPE_GENERAL */
    LOG_DUMP_PRESERVE_MAX_BUFSIZE, /* DLD_BUF_TYPE_PRESERVE */
    LOG_DUMP_SPECIAL_MAX_BUFSIZE,  /* DLD_BUF_TYPE_SPECIAL */
};

static void dhd_log_dump_init(dhd_pub_t *dhd);
static void dhd_log_dump_deinit(dhd_pub_t *dhd);
static void dhd_log_dump(void *handle, void *event_info, u8 event);
static int do_dhd_log_dump(dhd_pub_t *dhdp, log_dump_type_t *type);
static int dhd_log_flush(dhd_pub_t *dhdp, log_dump_type_t *type);
static void dhd_get_time_str(dhd_pub_t *dhdp, char *time_str, int size);
void dhd_get_debug_dump_len(void *handle, struct sk_buff *skb, void *event_info,
                            u8 event);
void cfgvendor_log_dump_len(dhd_pub_t *dhdp, log_dump_type_t *type,
                            struct sk_buff *skb);
static void dhd_print_buf_addr(dhd_pub_t *dhdp, char *name, void *buf,
                               unsigned int size);
static void dhd_log_dump_buf_addr(dhd_pub_t *dhdp, log_dump_type_t *type);
#endif /* DHD_LOG_DUMP */

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
#include <linux/workqueue.h>
#include <linux/pm_runtime.h>
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

#ifdef DHD_DEBUG_UART
#include <linux/kmod.h>
#define DHD_DEBUG_UART_EXEC_PATH "/system/bin/wldu"
static void dhd_debug_uart_exec_rd(void *handle, void *event_info, u8 event);
static void dhd_debug_uart_exec(dhd_pub_t *dhdp, char *cmd);
#endif /* DHD_DEBUG_UART */

static int dhd_reboot_callback(struct notifier_block *this, unsigned long code,
                               void *unused);
static struct notifier_block dhd_reboot_notifier = {
    .notifier_call = dhd_reboot_callback,
    .priority = 1,
};

#ifdef BCMPCIE
static int is_reboot = 0;
#endif /* BCMPCIE */

dhd_pub_t *g_dhd_pub = NULL;

#if defined(BT_OVER_SDIO)
#include "dhd_bt_interface.h"
#endif /* defined (BT_OVER_SDIO) */

#ifdef WL_STATIC_IF
bool dhd_is_static_ndev(dhd_pub_t *dhdp, struct net_device *ndev);
#endif /* WL_STATIC_IF */

atomic_t exit_in_progress = ATOMIC_INIT(0);

static void dhd_process_daemon_msg(struct sk_buff *skb);
static void dhd_destroy_to_notifier_skt(void);
static int dhd_create_to_notifier_skt(void);
static struct sock *nl_to_event_sk = NULL;
int sender_pid = 0;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
struct netlink_kernel_cfg dhd_netlink_cfg = {
    .groups = 1,
    .input = dhd_process_daemon_msg,
};
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0)) */

#if defined(BT_OVER_SDIO)
/* Flag to indicate if driver is initialized */
uint dhd_driver_init_done = TRUE;
#else
/* Flag to indicate if driver is initialized */
uint dhd_driver_init_done = FALSE;
#endif // endif
/* Flag to indicate if we should download firmware on driver load */
uint dhd_download_fw_on_driverload = TRUE;

/* Definitions to provide path to the firmware and nvram
 * example nvram_path[MOD_PARAM_PATHLEN]="/projects/wlan/nvram.txt"
 */
char firmware_path[MOD_PARAM_PATHLEN];
char nvram_path[MOD_PARAM_PATHLEN];
char clm_path[MOD_PARAM_PATHLEN];
char config_path[MOD_PARAM_PATHLEN];
#ifdef DHD_UCODE_DOWNLOAD
char ucode_path[MOD_PARAM_PATHLEN];
#endif /* DHD_UCODE_DOWNLOAD */

module_param_string(clm_path, clm_path, MOD_PARAM_PATHLEN, 0660);

/* backup buffer for firmware and nvram path */
char fw_bak_path[MOD_PARAM_PATHLEN];
char nv_bak_path[MOD_PARAM_PATHLEN];

/* information string to keep firmware, chio, cheip version info visiable from
 * log */
char info_string[MOD_PARAM_INFOLEN];
module_param_string(info_string, info_string, MOD_PARAM_INFOLEN, 0444);
int op_mode = 0;
int disable_proptx = 0;
module_param(op_mode, int, 0644);
extern int wl_control_wl_start(struct net_device *dev);
#if defined(BCMLXSDMMC) || defined(BCMDBUS)
struct semaphore dhd_registration_sem;
#endif /* BCMXSDMMC */

#ifdef DHD_LOG_DUMP
int logdump_max_filesize = LOG_DUMP_MAX_FILESIZE;
module_param(logdump_max_filesize, int, 0644);
int logdump_max_bufsize = LOG_DUMP_GENERAL_MAX_BUFSIZE;
module_param(logdump_max_bufsize, int, 0644);
int logdump_prsrv_tailsize = DHD_LOG_DUMP_MAX_TAIL_FLUSH_SIZE;
int logdump_periodic_flush = FALSE;
module_param(logdump_periodic_flush, int, 0644);
#ifdef EWP_ECNTRS_LOGGING
int logdump_ecntr_enable = TRUE;
#else
int logdump_ecntr_enable = FALSE;
#endif /* EWP_ECNTRS_LOGGING */
module_param(logdump_ecntr_enable, int, 0644);
#ifdef EWP_RTT_LOGGING
int logdump_rtt_enable = TRUE;
#else
int logdump_rtt_enable = FALSE;
#endif /* EWP_RTT_LOGGING */
module_param(logdump_rtt_enable, int, 0644);
#endif /* DHD_LOG_DUMP */
#ifdef EWP_EDL
int host_edl_support = TRUE;
module_param(host_edl_support, int, 0644);
#endif // endif

/* deferred handlers */
static void dhd_ifadd_event_handler(void *handle, void *event_info, u8 event);
static void dhd_ifdel_event_handler(void *handle, void *event_info, u8 event);
static void dhd_set_mac_addr_handler(void *handle, void *event_info, u8 event);
static void dhd_set_mcast_list_handler(void *handle, void *event_info,
                                       u8 event);
#ifdef WL_NATOE
static void dhd_natoe_ct_event_hanlder(void *handle, void *event_info,
                                       u8 event);
static void dhd_natoe_ct_ioctl_handler(void *handle, void *event_info,
                                       uint8 event);
#endif /* WL_NATOE */

#ifdef DHD_UPDATE_INTF_MAC
static void dhd_ifupdate_event_handler(void *handle, void *event_info,
                                       u8 event);
#endif /* DHD_UPDATE_INTF_MAC */
#if defined(CONFIG_IPV6) && defined(IPV6_NDO_SUPPORT)
static void dhd_inet6_work_handler(void *dhd_info, void *event_data, u8 event);
#endif /* CONFIG_IPV6 && IPV6_NDO_SUPPORT */
#ifdef WL_CFG80211
extern void dhd_netdev_free(struct net_device *ndev);
#endif /* WL_CFG80211 */
static dhd_if_t *dhd_get_ifp_by_ndev(dhd_pub_t *dhdp, struct net_device *ndev);

#if defined(WLDWDS) && defined(FOURADDR_AUTO_BRG)
static void dhd_bridge_dev_set(dhd_info_t *dhd, int ifidx,
                               struct net_device *dev);
#endif /* defiend(WLDWDS) && defined(FOURADDR_AUTO_BRG) */

#if (defined(DHD_WET) || defined(DHD_MCAST_REGEN) || defined(DHD_L2_FILTER))
/* update rx_pkt_chainable state of dhd interface */
static void dhd_update_rx_pkt_chainable_state(dhd_pub_t *dhdp, uint32 idx);
#endif /* DHD_WET || DHD_MCAST_REGEN || DHD_L2_FILTER */

/* Error bits */
module_param(dhd_msg_level, int, 0);
#if defined(WL_WIRELESS_EXT)
module_param(iw_msg_level, int, 0);
#endif
#ifdef WL_CFG80211
module_param(wl_dbg_level, int, 0);
#endif
module_param(ohos_msg_level, int, 0);
module_param(config_msg_level, int, 0);

#ifdef ARP_OFFLOAD_SUPPORT
/* ARP offload enable */
uint dhd_arp_enable = TRUE;
module_param(dhd_arp_enable, uint, 0);

/* ARP offload agent mode : Enable ARP Host Auto-Reply and ARP Peer Auto-Reply
 */

#ifdef ENABLE_ARP_SNOOP_MODE
uint dhd_arp_mode = (ARP_OL_AGENT | ARP_OL_PEER_AUTO_REPLY | ARP_OL_SNOOP |
                     ARP_OL_HOST_AUTO_REPLY | ARP_OL_UPDATE_HOST_CACHE);
#else
uint dhd_arp_mode =
    ARP_OL_AGENT | ARP_OL_PEER_AUTO_REPLY | ARP_OL_UPDATE_HOST_CACHE;
#endif /* ENABLE_ARP_SNOOP_MODE */

module_param(dhd_arp_mode, uint, 0);
#endif /* ARP_OFFLOAD_SUPPORT */

/* Disable Prop tx */
module_param(disable_proptx, int, 0644);
/* load firmware and/or nvram values from the filesystem */
module_param_string(firmware_path, firmware_path, MOD_PARAM_PATHLEN, 0660);
module_param_string(nvram_path, nvram_path, MOD_PARAM_PATHLEN, 0660);
module_param_string(config_path, config_path, MOD_PARAM_PATHLEN, 0);
#ifdef DHD_UCODE_DOWNLOAD
module_param_string(ucode_path, ucode_path, MOD_PARAM_PATHLEN, 0660);
#endif /* DHD_UCODE_DOWNLOAD */

/* wl event forwarding */
#ifdef WL_EVENT_ENAB
uint wl_event_enable = true;
#else
uint wl_event_enable = false;
#endif /* WL_EVENT_ENAB */
module_param(wl_event_enable, uint, 0660);

/* wl event forwarding */
#ifdef LOGTRACE_PKT_SENDUP
uint logtrace_pkt_sendup = true;
#else
uint logtrace_pkt_sendup = false;
#endif /* LOGTRACE_PKT_SENDUP */
module_param(logtrace_pkt_sendup, uint, 0660);

/* Watchdog interval */
/* extend watchdog expiration to 2 seconds when DPC is running */
#define WATCHDOG_EXTEND_INTERVAL (2000)

uint dhd_watchdog_ms = CUSTOM_DHD_WATCHDOG_MS;
module_param(dhd_watchdog_ms, uint, 0);

#if defined(DHD_DEBUG)
/* Console poll interval */
uint dhd_console_ms = 0;
module_param(dhd_console_ms, uint, 0644);
#else
uint dhd_console_ms = 0;
#endif /* DHD_DEBUG */

uint dhd_slpauto = TRUE;
module_param(dhd_slpauto, uint, 0);

#ifdef PKT_FILTER_SUPPORT
/* Global Pkt filter enable control */
uint dhd_pkt_filter_enable = TRUE;
module_param(dhd_pkt_filter_enable, uint, 0);
#endif // endif

/* Pkt filter init setup */
uint dhd_pkt_filter_init = 0;
module_param(dhd_pkt_filter_init, uint, 0);

/* Pkt filter mode control */
#ifdef GAN_LITE_NAT_KEEPALIVE_FILTER
uint dhd_master_mode = FALSE;
#else
uint dhd_master_mode = FALSE;
#endif /* GAN_LITE_NAT_KEEPALIVE_FILTER */
module_param(dhd_master_mode, uint, 0);

int dhd_watchdog_prio = 0;
module_param(dhd_watchdog_prio, int, 0);

/* DPC thread priority */
int dhd_dpc_prio = CUSTOM_DPC_PRIO_SETTING;
module_param(dhd_dpc_prio, int, 0);

/* RX frame thread priority */
int dhd_rxf_prio = CUSTOM_RXF_PRIO_SETTING;
module_param(dhd_rxf_prio, int, 0);

#if !defined(BCMDBUS)
extern int dhd_dongle_ramsize;
module_param(dhd_dongle_ramsize, int, 0);
#endif /* !BCMDBUS */

#ifdef WL_CFG80211
int passive_channel_skip = 0;
module_param(passive_channel_skip, int, (S_IRUSR | S_IWUSR));
#endif /* WL_CFG80211 */

#ifdef DHD_MSI_SUPPORT
uint enable_msi = TRUE;
module_param(enable_msi, uint, 0);
#endif /* PCIE_FULL_DONGLE */

#ifdef DHD_SSSR_DUMP
int dhdpcie_sssr_dump_get_before_after_len(dhd_pub_t *dhd, uint32 *arr_len);
extern uint support_sssr_dump;
module_param(support_sssr_dump, uint, 0);
#endif /* DHD_SSSR_DUMP */

/* Keep track of number of instances */
static int dhd_found = 0;
static int instance_base = 0; /* Starting instance number */
module_param(instance_base, int, 0644);

#if defined(DHD_LB_RXP)
static int dhd_napi_weight = 32;
module_param(dhd_napi_weight, int, 0644);
#endif /* DHD_LB_RXP */

#ifdef PCIE_FULL_DONGLE
extern int h2d_max_txpost;
module_param(h2d_max_txpost, int, 0644);

extern uint dma_ring_indices;
module_param(dma_ring_indices, uint, 0644);

extern bool h2d_phase;
module_param(h2d_phase, bool, 0644);
extern bool force_trap_bad_h2d_phase;
module_param(force_trap_bad_h2d_phase, bool, 0644);
#endif /* PCIE_FULL_DONGLE */

#ifdef FORCE_TPOWERON
/*
 * On Fire's reference platform, coming out of L1.2,
 * there is a constant delay of 45us between CLKREQ# and stable REFCLK
 * Due to this delay, with tPowerOn < 50
 * there is a chance of the refclk sense to trigger on noise.
 *
 * 0x29 when written to L1SSControl2 translates to 50us.
 */
#define FORCE_TPOWERON_50US 0x29
uint32 tpoweron_scale = FORCE_TPOWERON_50US; /* default 50us */
module_param(tpoweron_scale, uint, 0644);
#endif /* FORCE_TPOWERON */

#ifdef SHOW_LOGTRACE
static char *logstrs_path = "/data/misc/wifi/logstrs.bin";
char *st_str_file_path = "/data/misc/wifi/rtecdc.bin";
static char *map_file_path = "/data/misc/wifi/rtecdc.map";
static char *rom_st_str_file_path = "/data/misc/wifi/roml.bin";
static char *rom_map_file_path = "/data/misc/wifi/roml.map";
static char *ram_file_str = "rtecdc";
static char *rom_file_str = "roml";

module_param(logstrs_path, charp, S_IRUGO);
module_param(st_str_file_path, charp, S_IRUGO);
module_param(map_file_path, charp, S_IRUGO);
module_param(rom_st_str_file_path, charp, S_IRUGO);
module_param(rom_map_file_path, charp, S_IRUGO);

static int dhd_init_logstrs_array(osl_t *osh, dhd_event_log_t *temp);
static int dhd_read_map(osl_t *osh, char *fname, uint32 *ramstart,
                        uint32 *rodata_start, uint32 *rodata_end);
static int dhd_init_static_strs_array(osl_t *osh, dhd_event_log_t *temp,
                                      char *str_file, char *map_file);
#endif /* SHOW_LOGTRACE */

#ifdef USE_WFA_CERT_CONF
int g_frameburst = 1;
#endif /* USE_WFA_CERT_CONF */

static int dhd_get_pend_8021x_cnt(dhd_info_t *dhd);

/* DHD Perimiter lock only used in router with bypass forwarding. */
#define DHD_PERIM_RADIO_INIT()                                                 \
    do { /* noop */                                                            \
    } while (0)
#define DHD_PERIM_LOCK_TRY(unit, flag)                                         \
    do { /* noop */                                                            \
    } while (0)
#define DHD_PERIM_UNLOCK_TRY(unit, flag)                                       \
    do { /* noop */                                                            \
    } while (0)

#ifdef PCIE_FULL_DONGLE
#define DHD_IF_STA_LIST_LOCK_INIT(ifp) spin_lock_init(&(ifp)->sta_list_lock)
#define DHD_IF_STA_LIST_LOCK(ifp, flags)                                       \
    spin_lock_irqsave(&(ifp)->sta_list_lock, (flags))
#define DHD_IF_STA_LIST_UNLOCK(ifp, flags)                                     \
    spin_unlock_irqrestore(&(ifp)->sta_list_lock, (flags))

#if defined(DHD_IGMP_UCQUERY) || defined(DHD_UCAST_UPNP)
static struct list_head *dhd_sta_list_snapshot(dhd_info_t *dhd, dhd_if_t *ifp,
                                               struct list_head *snapshot_list);
static void dhd_sta_list_snapshot_free(dhd_info_t *dhd,
                                       struct list_head *snapshot_list);
#define DHD_IF_WMF_UCFORWARD_LOCK(dhd, ifp, slist)                             \
    ({ dhd_sta_list_snapshot(dhd, ifp, slist); })
#define DHD_IF_WMF_UCFORWARD_UNLOCK(dhd, slist)                                \
    ({ dhd_sta_list_snapshot_free(dhd, slist); })
#endif /* DHD_IGMP_UCQUERY || DHD_UCAST_UPNP */
#endif /* PCIE_FULL_DONGLE */

/* Control fw roaming */
#ifdef BCMCCX
uint dhd_roam_disable = 0;
#else
uint dhd_roam_disable = 0;
#endif /* BCMCCX */

#ifdef BCMDBGFS
extern void dhd_dbgfs_init(dhd_pub_t *dhdp);
extern void dhd_dbgfs_remove(void);
#endif // endif

static uint pcie_txs_metadata_enable = 0; /* Enable TX status metadta report */
module_param(pcie_txs_metadata_enable, int, 0);

/* Control radio state */
uint dhd_radio_up = 1;

/* Network inteface name */
char iface_name[IFNAMSIZ] = {'\0'};
module_param_string(iface_name, iface_name, IFNAMSIZ, 0);

/* The following are specific to the SDIO dongle */

/* IOCTL response timeout */
int dhd_ioctl_timeout_msec = IOCTL_RESP_TIMEOUT;

/* DS Exit response timeout */
int ds_exit_timeout_msec = DS_EXIT_TIMEOUT;

/* Idle timeout for backplane clock */
int dhd_idletime = DHD_IDLETIME_TICKS;
module_param(dhd_idletime, int, 0);

/* Use polling */
uint dhd_poll = FALSE;
module_param(dhd_poll, uint, 0);

/* Use interrupts */
uint dhd_intr = TRUE;
module_param(dhd_intr, uint, 0);

/* SDIO Drive Strength (in milliamps) */
uint dhd_sdiod_drive_strength = 6;
module_param(dhd_sdiod_drive_strength, uint, 0);

#ifdef BCMSDIO
/* Tx/Rx bounds */
extern uint dhd_txbound;
extern uint dhd_rxbound;
module_param(dhd_txbound, uint, 0);
module_param(dhd_rxbound, uint, 0);

/* Deferred transmits */
extern uint dhd_deferred_tx;
module_param(dhd_deferred_tx, uint, 0);

#endif /* BCMSDIO */

#ifdef SDTEST
/* Echo packet generator (pkts/s) */
uint dhd_pktgen = 0;
module_param(dhd_pktgen, uint, 0);

/* Echo packet len (0 => sawtooth, max 2040) */
uint dhd_pktgen_len = 0;
module_param(dhd_pktgen_len, uint, 0);
#endif /* SDTEST */

#if defined(BCMSUP_4WAY_HANDSHAKE)
/* Use in dongle supplicant for 4-way handshake */
#if defined(WLFBT) || defined(WL_ENABLE_IDSUP)
/* Enable idsup by default (if supported in fw) */
uint dhd_use_idsup = 1;
#else
uint dhd_use_idsup = 0;
#endif /* WLFBT || WL_ENABLE_IDSUP */
module_param(dhd_use_idsup, uint, 0);
#endif /* BCMSUP_4WAY_HANDSHAKE */

#ifndef BCMDBUS
/* Allow delayed firmware download for debug purpose */
int allow_delay_fwdl = FALSE;
module_param(allow_delay_fwdl, int, 0);
#endif /* !BCMDBUS */

#ifdef ECOUNTER_PERIODIC_DISABLE
uint enable_ecounter = FALSE;
#else
uint enable_ecounter = TRUE;
#endif // endif
module_param(enable_ecounter, uint, 0);

/* TCM verification flag */
uint dhd_tcm_test_enable = FALSE;
module_param(dhd_tcm_test_enable, uint, 0644);

extern char dhd_version[];
extern char fw_version[];
extern char clm_version[];

int dhd_net_bus_devreset(struct net_device *dev, uint8 flag);
static void dhd_net_if_lock_local(dhd_info_t *dhd);
static void dhd_net_if_unlock_local(dhd_info_t *dhd);
static void dhd_suspend_lock(dhd_pub_t *dhdp);
static void dhd_suspend_unlock(dhd_pub_t *dhdp);

/* Monitor interface */
int dhd_monitor_init(void *dhd_pub);
int dhd_monitor_uninit(void);

#ifdef DHD_PM_CONTROL_FROM_FILE
bool g_pm_control;
#ifdef DHD_EXPORT_CNTL_FILE
int pmmode_val;
#endif /* DHD_EXPORT_CNTL_FILE */
void sec_control_pm(dhd_pub_t *dhd, uint *);
#endif /* DHD_PM_CONTROL_FROM_FILE */

#if defined(WL_WIRELESS_EXT)
struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev);
#endif /* defined(WL_WIRELESS_EXT) */

#ifndef BCMDBUS
static void dhd_dpc(ulong data);
#endif /* !BCMDBUS */
/* forward decl */
extern int dhd_wait_pend8021x(struct net_device *dev);
void dhd_os_wd_timer_extend(void *bus, bool extend);

#ifdef TOE
#ifndef BDC
#error TOE requires BDC
#endif /* !BDC */
static int dhd_toe_get(dhd_info_t *dhd, int idx, uint32 *toe_ol);
static int dhd_toe_set(dhd_info_t *dhd, int idx, uint32 toe_ol);
#endif /* TOE */

static int dhd_wl_host_event(dhd_info_t *dhd, int ifidx, void *pktdata,
                             uint16 pktlen, wl_event_msg_t *event_ptr,
                             void **data_ptr);

#if defined(CONFIG_PM_SLEEP)
static int dhd_pm_callback(struct notifier_block *nfb, unsigned long action,
                           void *ignored)
{
    int ret = NOTIFY_DONE;
    bool suspend = FALSE;

#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
    dhd_info_t *dhdinfo =
        (dhd_info_t *)container_of(nfb, struct dhd_info, pm_notifier);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
    dhd_pub_t *dhd = &dhdinfo->pub;
    struct dhd_conf *conf = dhd->conf;
    int suspend_mode = conf->suspend_mode;

    BCM_REFERENCE(dhdinfo);
    BCM_REFERENCE(suspend);

    switch (action) {
        case PM_HIBERNATION_PREPARE:
        case PM_SUSPEND_PREPARE:
            suspend = TRUE;
            break;

        case PM_POST_HIBERNATION:
        case PM_POST_SUSPEND:
            suspend = FALSE;
            break;
    }
    printf("%s: action=%ld, suspend=%d, suspend_mode=%d\n", __FUNCTION__,
           action, suspend, suspend_mode);
    if (suspend) {
        DHD_OS_WAKE_LOCK_WAIVE(dhd);
        if (suspend_mode == PM_NOTIFIER) {
            dhd_suspend_resume_helper(dhdinfo, suspend, 0);
        }
#if defined(SUPPORT_P2P_GO_PS) && defined(PROP_TXSTATUS)
        dhd_wlfc_suspend(dhd);
#endif /* defined(SUPPORT_P2P_GO_PS) && defined(PROP_TXSTATUS) */
        if (suspend_mode == PM_NOTIFIER || suspend_mode == SUSPEND_MODE_2) {
            dhd_conf_set_suspend_resume(dhd, suspend);
        }
        DHD_OS_WAKE_LOCK_RESTORE(dhd);
    } else {
        if (suspend_mode == PM_NOTIFIER || suspend_mode == SUSPEND_MODE_2) {
            dhd_conf_set_suspend_resume(dhd, suspend);
        }
#if defined(SUPPORT_P2P_GO_PS) && defined(PROP_TXSTATUS)
        dhd_wlfc_resume(dhd);
#endif /* defined(SUPPORT_P2P_GO_PS) && defined(PROP_TXSTATUS) */
        if (suspend_mode == PM_NOTIFIER) {
            dhd_suspend_resume_helper(dhdinfo, suspend, 0);
        }
    }

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) &&                        \
    (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 39))
    dhd_mmc_suspend = suspend;
    smp_mb();
#endif

    return ret;
}

/* to make sure we won't register the same notifier twice, otherwise a loop is
 * likely to be created in kernel notifier link list (with 'next' pointing to
 * itself)
 */
static bool dhd_pm_notifier_registered = FALSE;

extern int register_pm_notifier(struct notifier_block *nb);
extern int unregister_pm_notifier(struct notifier_block *nb);
#endif /* CONFIG_PM_SLEEP */

/* Request scheduling of the bus rx frame */
static void dhd_sched_rxf(dhd_pub_t *dhdp, void *skb);
static void dhd_os_rxflock(dhd_pub_t *pub);
static void dhd_os_rxfunlock(dhd_pub_t *pub);

#if defined(DHD_H2D_LOG_TIME_SYNC)
static void dhd_deferred_work_rte_log_time_sync(void *handle, void *event_info,
                                                u8 event);
#endif /* DHD_H2D_LOG_TIME_SYNC */

/** priv_link is the link between netdev and the dhdif and dhd_info structs. */
typedef struct dhd_dev_priv {
    dhd_info_t *dhd; /* cached pointer to dhd_info in netdevice priv */
    dhd_if_t *ifp;   /* cached pointer to dhd_if in netdevice priv */
    int ifidx;       /* interface index */
    void *lkup;
} dhd_dev_priv_t;

#define DHD_DEV_PRIV_SIZE (sizeof(dhd_dev_priv_t))

#ifdef CONFIG_AP6XXX_WIFI6_HDF
#include "net_device.h"

extern int g_hdf_ifidx;
void BDH6_ResetDriver(void);
struct NetDevice *GetHdfNetDeviceByLinuxInf(struct net_device *dev);

static inline dhd_dev_priv_t *DHD_DEV_PRIV(struct net_device *dev)
{
    dhd_dev_priv_t *__tmp_dhd_netpriv = NULL;
    struct NetDevice *hnetdev = GetHdfNetDeviceByLinuxInf(dev);
    if (hnetdev != NULL) {
        __tmp_dhd_netpriv = ((dhd_dev_priv_t *)hnetdev->mlPriv);
    } else {
        __tmp_dhd_netpriv = NULL;
        DHD_ERROR(("HDF net_device %s is invalid\n", dev->name));
    }

    return (__tmp_dhd_netpriv);
}

void *VOID_DEV_PRIV(struct net_device *dev)
{
    return (void *)DHD_DEV_PRIV(dev);
}

#define DHD_DEV_INFO(dev) (DHD_DEV_PRIV(dev)->dhd)
#define DHD_DEV_IFP(dev) (DHD_DEV_PRIV(dev)->ifp)
#define DHD_DEV_IFIDX(dev) (DHD_DEV_PRIV(dev)->ifidx)
#define DHD_DEV_LKUP(dev) (DHD_DEV_PRIV(dev)->lkup)

#else
#define DHD_DEV_PRIV(dev) ((dhd_dev_priv_t *)DEV_PRIV(dev))
#define DHD_DEV_INFO(dev) (((dhd_dev_priv_t *)DEV_PRIV(dev))->dhd)
#define DHD_DEV_IFP(dev) (((dhd_dev_priv_t *)DEV_PRIV(dev))->ifp)
#define DHD_DEV_IFIDX(dev) (((dhd_dev_priv_t *)DEV_PRIV(dev))->ifidx)
#define DHD_DEV_LKUP(dev) (((dhd_dev_priv_t *)DEV_PRIV(dev))->lkup)
#endif

/** Clear the dhd net_device's private structure. */
static inline void dhd_dev_priv_clear(struct net_device *dev)
{
    dhd_dev_priv_t *dev_priv;
    ASSERT(dev != (struct net_device *)NULL);
    dev_priv = DHD_DEV_PRIV(dev);
    dev_priv->dhd = (dhd_info_t *)NULL;
    dev_priv->ifp = (dhd_if_t *)NULL;
    dev_priv->ifidx = DHD_BAD_IF;
    dev_priv->lkup = (void *)NULL;
}

/** Setup the dhd net_device's private structure. */
static inline void dhd_dev_priv_save(struct net_device *dev, dhd_info_t *dhd,
                                     dhd_if_t *ifp, int ifidx)
{
    dhd_dev_priv_t *dev_priv;
    ASSERT(dev != (struct net_device *)NULL);
    dev_priv = DHD_DEV_PRIV(dev);
    dev_priv->dhd = dhd;
    dev_priv->ifp = ifp;
    dev_priv->ifidx = ifidx;
}

/* Return interface pointer */
struct dhd_if *dhd_get_ifp(dhd_pub_t *dhdp, uint32 ifidx)
{
    ASSERT(ifidx < DHD_MAX_IFS);

    if (!dhdp || !dhdp->info || ifidx >= DHD_MAX_IFS) {
        return NULL;
    }

    return dhdp->info->iflist[ifidx];
}

#ifdef WLEASYMESH
int dhd_set_1905_almac(dhd_pub_t *dhdp, uint8 ifidx, uint8 *ea, bool mcast)
{
    dhd_if_t *ifp;

    ASSERT(ea != NULL);
    ifp = dhd_get_ifp(dhdp, ifidx);
    if (ifp == NULL) {
        return BCME_ERROR;
    }
    if (mcast) {
        memcpy(ifp->_1905_al_mcast, ea, ETHER_ADDR_LEN);
    } else {
        memcpy(ifp->_1905_al_ucast, ea, ETHER_ADDR_LEN);
    }
    return BCME_OK;
}
int dhd_get_1905_almac(dhd_pub_t *dhdp, uint8 ifidx, uint8 *ea, bool mcast)
{
    dhd_if_t *ifp;

    ASSERT(ea != NULL);
    ifp = dhd_get_ifp(dhdp, ifidx);
    if (ifp == NULL) {
        return BCME_ERROR;
    }
    if (mcast) {
        memcpy(ea, ifp->_1905_al_mcast, ETHER_ADDR_LEN);
    } else {
        memcpy(ea, ifp->_1905_al_ucast, ETHER_ADDR_LEN);
    }
    return BCME_OK;
}
#endif /* WLEASYMESH */

#ifdef PCIE_FULL_DONGLE

/** Dummy objects are defined with state representing bad|down.
 * Performance gains from reducing branch conditionals, instruction parallelism,
 * dual issue, reducing load shadows, avail of larger pipelines.
 * Use DHD_XXX_NULL instead of (dhd_xxx_t *)NULL, whenever an object pointer
 * is accessed via the dhd_sta_t.
 */

/* Dummy dhd_info object */
dhd_info_t dhd_info_null = {.pub = {.info = &dhd_info_null,
#ifdef DHDTCPACK_SUPPRESS
                                    .tcpack_sup_mode = TCPACK_SUP_REPLACE,
#endif /* DHDTCPACK_SUPPRESS */
                                    .up = FALSE,
                                    .busstate = DHD_BUS_DOWN}};
#define DHD_INFO_NULL (&dhd_info_null)
#define DHD_PUB_NULL (&dhd_info_null.pub)

/* Dummy netdevice object */
struct net_device dhd_net_dev_null = {.reg_state = NETREG_UNREGISTERED};
#define DHD_NET_DEV_NULL (&dhd_net_dev_null)

/* Dummy dhd_if object */
dhd_if_t dhd_if_null = {
#ifdef WMF
    .wmf = {.wmf_enable = TRUE},
#endif // endif
    .info = DHD_INFO_NULL,
    .net = DHD_NET_DEV_NULL,
    .idx = DHD_BAD_IF};
#define DHD_IF_NULL (&dhd_if_null)

#define DHD_STA_NULL ((dhd_sta_t *)NULL)

/** Interface STA list management. */

/** Alloc/Free a dhd_sta object from the dhd instances' sta_pool. */
static void dhd_sta_free(dhd_pub_t *pub, dhd_sta_t *sta);
static dhd_sta_t *dhd_sta_alloc(dhd_pub_t *dhdp);

/* Delete a dhd_sta or flush all dhd_sta in an interface's sta_list. */
static void dhd_if_del_sta_list(dhd_if_t *ifp);
static void dhd_if_flush_sta(dhd_if_t *ifp);

/* Construct/Destruct a sta pool. */
static int dhd_sta_pool_init(dhd_pub_t *dhdp, int max_sta);
static void dhd_sta_pool_fini(dhd_pub_t *dhdp, int max_sta);
/* Clear the pool of dhd_sta_t objects for built-in type driver */
static void dhd_sta_pool_clear(dhd_pub_t *dhdp, int max_sta);

/** Reset a dhd_sta object and free into the dhd pool. */
static void dhd_sta_free(dhd_pub_t *dhdp, dhd_sta_t *sta)
{
    int prio;

    ASSERT((sta != DHD_STA_NULL) && (sta->idx != ID16_INVALID));

    ASSERT((dhdp->staid_allocator != NULL) && (dhdp->sta_pool != NULL));

    /*
     * Flush and free all packets in all flowring's queues belonging to sta.
     * Packets in flow ring will be flushed later.
     */
    for (prio = 0; prio < (int)NUMPRIO; prio++) {
        uint16 flowid = sta->flowid[prio];

        if (flowid != FLOWID_INVALID) {
            unsigned long flags;
            flow_ring_node_t *flow_ring_node;

#ifdef DHDTCPACK_SUPPRESS
            /* Clean tcp_ack_info_tbl in order to prevent access to flushed pkt,
             * when there is a newly coming packet from network stack.
             */
            dhd_tcpack_info_tbl_clean(dhdp);
#endif /* DHDTCPACK_SUPPRESS */

            flow_ring_node = dhd_flow_ring_node(dhdp, flowid);
            if (flow_ring_node) {
                flow_queue_t *queue = &flow_ring_node->queue;

                DHD_FLOWRING_LOCK(flow_ring_node->lock, flags);
                flow_ring_node->status = FLOW_RING_STATUS_STA_FREEING;

                if (!DHD_FLOW_QUEUE_EMPTY(queue)) {
                    void *pkt;
                    while ((pkt = dhd_flow_queue_dequeue(dhdp, queue)) !=
                           NULL) {
                        PKTFREE(dhdp->osh, pkt, TRUE);
                    }
                }

                DHD_FLOWRING_UNLOCK(flow_ring_node->lock, flags);
                ASSERT(DHD_FLOW_QUEUE_EMPTY(queue));
            }
        }

        sta->flowid[prio] = FLOWID_INVALID;
    }

    id16_map_free(dhdp->staid_allocator, sta->idx);
    DHD_CUMM_CTR_INIT(&sta->cumm_ctr);
    sta->ifp = DHD_IF_NULL; /* dummy dhd_if object */
    sta->ifidx = DHD_BAD_IF;
    bzero(sta->ea.octet, ETHER_ADDR_LEN);
    INIT_LIST_HEAD(&sta->list);
    sta->idx = ID16_INVALID; /* implying free */
}

/** Allocate a dhd_sta object from the dhd pool. */
static dhd_sta_t *dhd_sta_alloc(dhd_pub_t *dhdp)
{
    uint16 idx;
    dhd_sta_t *sta;
    dhd_sta_pool_t *sta_pool;

    ASSERT((dhdp->staid_allocator != NULL) && (dhdp->sta_pool != NULL));

    idx = id16_map_alloc(dhdp->staid_allocator);
    if (idx == ID16_INVALID) {
        DHD_ERROR(("%s: cannot get free staid\n", __FUNCTION__));
        return DHD_STA_NULL;
    }

    sta_pool = (dhd_sta_pool_t *)(dhdp->sta_pool);
    sta = &sta_pool[idx];

    ASSERT((sta->idx == ID16_INVALID) && (sta->ifp == DHD_IF_NULL) &&
           (sta->ifidx == DHD_BAD_IF));

    DHD_CUMM_CTR_INIT(&sta->cumm_ctr);

    sta->idx = idx; /* implying allocated */

    return sta;
}

/** Delete all STAs in an interface's STA list. */
static void dhd_if_del_sta_list(dhd_if_t *ifp)
{
    dhd_sta_t *sta, *next;
    unsigned long flags;

    DHD_IF_STA_LIST_LOCK(ifp, flags);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
    list_for_each_entry_safe(sta, next, &ifp->sta_list, list)
    {
        list_del(&sta->list);
        dhd_sta_free(&ifp->info->pub, sta);
    }
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
    DHD_IF_STA_LIST_UNLOCK(ifp, flags);

    return;
}

/** Router/GMAC3: Flush all station entries in the forwarder's WOFA database. */
static void dhd_if_flush_sta(dhd_if_t *ifp)
{
}

/** Construct a pool of dhd_sta_t objects to be used by interfaces. */
static int dhd_sta_pool_init(dhd_pub_t *dhdp, int max_sta)
{
    int idx, prio, sta_pool_memsz;
    dhd_sta_t *sta;
    dhd_sta_pool_t *sta_pool;
    void *staid_allocator;

    ASSERT(dhdp != (dhd_pub_t *)NULL);
    ASSERT((dhdp->staid_allocator == NULL) && (dhdp->sta_pool == NULL));

    /* dhd_sta objects per radio are managed in a table. id#0 reserved. */
    staid_allocator = id16_map_init(dhdp->osh, max_sta, 1);
    if (staid_allocator == NULL) {
        DHD_ERROR(("%s: sta id allocator init failure\n", __FUNCTION__));
        return BCME_ERROR;
    }

    /* Pre allocate a pool of dhd_sta objects (one extra). */
    sta_pool_memsz = ((max_sta + 1) * sizeof(dhd_sta_t)); /* skip idx 0 */
    sta_pool = (dhd_sta_pool_t *)MALLOC(dhdp->osh, sta_pool_memsz);
    if (sta_pool == NULL) {
        DHD_ERROR(("%s: sta table alloc failure\n", __FUNCTION__));
        id16_map_fini(dhdp->osh, staid_allocator);
        return BCME_ERROR;
    }

    dhdp->sta_pool = sta_pool;
    dhdp->staid_allocator = staid_allocator;

    /* Initialize all sta(s) for the pre-allocated free pool. */
    bzero((uchar *)sta_pool, sta_pool_memsz);
    for (idx = max_sta; idx >= 1; idx--) { /* skip sta_pool[0] */
        sta = &sta_pool[idx];
        sta->idx = id16_map_alloc(staid_allocator);
        ASSERT(sta->idx <= max_sta);
    }

    /* Now place them into the pre-allocated free pool. */
    for (idx = 1; idx <= max_sta; idx++) {
        sta = &sta_pool[idx];
        for (prio = 0; prio < (int)NUMPRIO; prio++) {
            sta->flowid[prio] = FLOWID_INVALID; /* Flow rings do not exist */
        }
        dhd_sta_free(dhdp, sta);
    }

    return BCME_OK;
}

/** Destruct the pool of dhd_sta_t objects.
 * Caller must ensure that no STA objects are currently associated with an if.
 */
static void dhd_sta_pool_fini(dhd_pub_t *dhdp, int max_sta)
{
    dhd_sta_pool_t *sta_pool = (dhd_sta_pool_t *)dhdp->sta_pool;

    if (sta_pool) {
        int idx;
        int sta_pool_memsz = ((max_sta + 1) * sizeof(dhd_sta_t));
        for (idx = 1; idx <= max_sta; idx++) {
            ASSERT(sta_pool[idx].ifp == DHD_IF_NULL);
            ASSERT(sta_pool[idx].idx == ID16_INVALID);
        }
        MFREE(dhdp->osh, dhdp->sta_pool, sta_pool_memsz);
        dhdp->sta_pool = NULL;
    }

    id16_map_fini(dhdp->osh, dhdp->staid_allocator);
    dhdp->staid_allocator = NULL;
}

/* Clear the pool of dhd_sta_t objects for built-in type driver */
static void dhd_sta_pool_clear(dhd_pub_t *dhdp, int max_sta)
{
    int idx, prio, sta_pool_memsz;
    dhd_sta_t *sta;
    dhd_sta_pool_t *sta_pool;
    void *staid_allocator;

    if (!dhdp) {
        DHD_ERROR(("%s: dhdp is NULL\n", __FUNCTION__));
        return;
    }

    sta_pool = (dhd_sta_pool_t *)dhdp->sta_pool;
    staid_allocator = dhdp->staid_allocator;

    if (!sta_pool) {
        DHD_ERROR(("%s: sta_pool is NULL\n", __FUNCTION__));
        return;
    }

    if (!staid_allocator) {
        DHD_ERROR(("%s: staid_allocator is NULL\n", __FUNCTION__));
        return;
    }

    /* clear free pool */
    sta_pool_memsz = ((max_sta + 1) * sizeof(dhd_sta_t));
    bzero((uchar *)sta_pool, sta_pool_memsz);

    /* dhd_sta objects per radio are managed in a table. id#0 reserved. */
    id16_map_clear(staid_allocator, max_sta, 1);

    /* Initialize all sta(s) for the pre-allocated free pool. */
    for (idx = max_sta; idx >= 1; idx--) { /* skip sta_pool[0] */
        sta = &sta_pool[idx];
        sta->idx = id16_map_alloc(staid_allocator);
        ASSERT(sta->idx <= max_sta);
    }
    /* Now place them into the pre-allocated free pool. */
    for (idx = 1; idx <= max_sta; idx++) {
        sta = &sta_pool[idx];
        for (prio = 0; prio < (int)NUMPRIO; prio++) {
            sta->flowid[prio] = FLOWID_INVALID; /* Flow rings do not exist */
        }
        dhd_sta_free(dhdp, sta);
    }
}

/** Find STA with MAC address ea in an interface's STA list. */
dhd_sta_t *dhd_find_sta(void *pub, int ifidx, void *ea)
{
    dhd_sta_t *sta;
    dhd_if_t *ifp;
    unsigned long flags;

    ASSERT(ea != NULL);
    ifp = dhd_get_ifp((dhd_pub_t *)pub, ifidx);
    if (ifp == NULL) {
        return DHD_STA_NULL;
    }

    DHD_IF_STA_LIST_LOCK(ifp, flags);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
    list_for_each_entry(sta, &ifp->sta_list, list)
    {
        if (!memcmp(sta->ea.octet, ea, ETHER_ADDR_LEN)) {
            DHD_INFO(("%s: Found STA " MACDBG "\n", __FUNCTION__,
                      MAC2STRDBG((char *)ea)));
            DHD_IF_STA_LIST_UNLOCK(ifp, flags);
            return sta;
        }
    }
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
    DHD_IF_STA_LIST_UNLOCK(ifp, flags);

    return DHD_STA_NULL;
}

/** Add STA into the interface's STA list. */
dhd_sta_t *dhd_add_sta(void *pub, int ifidx, void *ea)
{
    dhd_sta_t *sta;
    dhd_if_t *ifp;
    unsigned long flags;

    ASSERT(ea != NULL);
    ifp = dhd_get_ifp((dhd_pub_t *)pub, ifidx);
    if (ifp == NULL) {
        return DHD_STA_NULL;
    }

    if (!memcmp(ifp->net->dev_addr, ea, ETHER_ADDR_LEN)) {
        DHD_ERROR(("%s: Serious FAILURE, receive own MAC %pM !!\n",
                   __FUNCTION__, ea));
        return DHD_STA_NULL;
    }

    sta = dhd_sta_alloc((dhd_pub_t *)pub);
    if (sta == DHD_STA_NULL) {
        DHD_ERROR(("%s: Alloc failed\n", __FUNCTION__));
        return DHD_STA_NULL;
    }

    memcpy(sta->ea.octet, ea, ETHER_ADDR_LEN);

    /* link the sta and the dhd interface */
    sta->ifp = ifp;
    sta->ifidx = ifidx;
    INIT_LIST_HEAD(&sta->list);

    DHD_IF_STA_LIST_LOCK(ifp, flags);

    list_add_tail(&sta->list, &ifp->sta_list);

    DHD_ERROR(
        ("%s: Adding  STA " MACDBG "\n", __FUNCTION__, MAC2STRDBG((char *)ea)));

    DHD_IF_STA_LIST_UNLOCK(ifp, flags);

    return sta;
}

/** Delete all STAs from the interface's STA list. */
void dhd_del_all_sta(void *pub, int ifidx)
{
    dhd_sta_t *sta, *next;
    dhd_if_t *ifp;
    unsigned long flags;

    ifp = dhd_get_ifp((dhd_pub_t *)pub, ifidx);
    if (ifp == NULL) {
        return;
    }

    DHD_IF_STA_LIST_LOCK(ifp, flags);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
    list_for_each_entry_safe(sta, next, &ifp->sta_list, list)
    {
        list_del(&sta->list);
        dhd_sta_free(&ifp->info->pub, sta);
#ifdef DHD_L2_FILTER
        if (ifp->parp_enable) {
            /* clear Proxy ARP cache of specific Ethernet Address */
            bcm_l2_filter_arp_table_update(
                ((dhd_pub_t *)pub)->osh, ifp->phnd_arp_table, FALSE,
                sta->ea.octet, FALSE, ((dhd_pub_t *)pub)->tickcnt);
        }
#endif /* DHD_L2_FILTER */
    }
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
    DHD_IF_STA_LIST_UNLOCK(ifp, flags);

    return;
}

/** Delete STA from the interface's STA list. */
void dhd_del_sta(void *pub, int ifidx, void *ea)
{
    dhd_sta_t *sta, *next;
    dhd_if_t *ifp;
    unsigned long flags;

    ASSERT(ea != NULL);
    ifp = dhd_get_ifp((dhd_pub_t *)pub, ifidx);
    if (ifp == NULL) {
        return;
    }

    DHD_IF_STA_LIST_LOCK(ifp, flags);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
    list_for_each_entry_safe(sta, next, &ifp->sta_list, list)
    {
        if (!memcmp(sta->ea.octet, ea, ETHER_ADDR_LEN)) {
            DHD_ERROR(("%s: Deleting STA " MACDBG "\n", __FUNCTION__,
                       MAC2STRDBG(sta->ea.octet)));
            list_del(&sta->list);
            dhd_sta_free(&ifp->info->pub, sta);
        }
    }
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
    DHD_IF_STA_LIST_UNLOCK(ifp, flags);
#ifdef DHD_L2_FILTER
    if (ifp->parp_enable) {
        /* clear Proxy ARP cache of specific Ethernet Address */
        bcm_l2_filter_arp_table_update(((dhd_pub_t *)pub)->osh,
                                       ifp->phnd_arp_table, FALSE, ea, FALSE,
                                       ((dhd_pub_t *)pub)->tickcnt);
    }
#endif /* DHD_L2_FILTER */
    return;
}

/** Add STA if it doesn't exist. Not reentrant. */
dhd_sta_t *dhd_findadd_sta(void *pub, int ifidx, void *ea)
{
    dhd_sta_t *sta;

    sta = dhd_find_sta(pub, ifidx, ea);
    if (!sta) {
        /* Add entry */
        sta = dhd_add_sta(pub, ifidx, ea);
    }

    return sta;
}

#if defined(DHD_IGMP_UCQUERY) || defined(DHD_UCAST_UPNP)
static struct list_head *dhd_sta_list_snapshot(dhd_info_t *dhd, dhd_if_t *ifp,
                                               struct list_head *snapshot_list)
{
    unsigned long flags;
    dhd_sta_t *sta, *snapshot;

    INIT_LIST_HEAD(snapshot_list);

    DHD_IF_STA_LIST_LOCK(ifp, flags);

    list_for_each_entry(sta, &ifp->sta_list, list)
    {
        /* allocate one and add to snapshot */
        snapshot = (dhd_sta_t *)MALLOC(dhd->pub.osh, sizeof(dhd_sta_t));
        if (snapshot == NULL) {
            DHD_ERROR(("%s: Cannot allocate memory\n", __FUNCTION__));
            continue;
        }

        memcpy(snapshot->ea.octet, sta->ea.octet, ETHER_ADDR_LEN);

        INIT_LIST_HEAD(&snapshot->list);
        list_add_tail(&snapshot->list, snapshot_list);
    }

    DHD_IF_STA_LIST_UNLOCK(ifp, flags);

    return snapshot_list;
}

static void dhd_sta_list_snapshot_free(dhd_info_t *dhd,
                                       struct list_head *snapshot_list)
{
    dhd_sta_t *sta, *next;

    list_for_each_entry_safe(sta, next, snapshot_list, list)
    {
        list_del(&sta->list);
        MFREE(dhd->pub.osh, sta, sizeof(dhd_sta_t));
    }
}
#endif /* DHD_IGMP_UCQUERY || DHD_UCAST_UPNP */

#else
static inline void dhd_if_flush_sta(dhd_if_t *ifp)
{
}
static inline void dhd_if_del_sta_list(dhd_if_t *ifp)
{
}
static inline int dhd_sta_pool_init(dhd_pub_t *dhdp, int max_sta)
{
    return BCME_OK;
}
static inline void dhd_sta_pool_fini(dhd_pub_t *dhdp, int max_sta)
{
}
static inline void dhd_sta_pool_clear(dhd_pub_t *dhdp, int max_sta)
{
}
dhd_sta_t *dhd_findadd_sta(void *pub, int ifidx, void *ea)
{
    return NULL;
}
dhd_sta_t *dhd_find_sta(void *pub, int ifidx, void *ea)
{
    return NULL;
}
void dhd_del_sta(void *pub, int ifidx, void *ea)
{
}
#endif /* PCIE_FULL_DONGLE */

#if defined(DNGL_AXI_ERROR_LOGGING) && defined(DHD_USE_WQ_FOR_DNGL_AXI_ERROR)
void dhd_axi_error_dispatch(dhd_pub_t *dhdp)
{
    dhd_info_t *dhd = dhdp->info;
    schedule_work(&dhd->axi_error_dispatcher_work);
}

static void dhd_axi_error_dispatcher_fn(struct work_struct *work)
{
    struct dhd_info *dhd =
        container_of(work, struct dhd_info, axi_error_dispatcher_work);
    dhd_axi_error(&dhd->pub);
}
#endif /* DNGL_AXI_ERROR_LOGGING && DHD_USE_WQ_FOR_DNGL_AXI_ERROR */

/** Returns dhd iflist index corresponding the the bssidx provided by apps */
int dhd_bssidx2idx(dhd_pub_t *dhdp, uint32 bssidx)
{
    dhd_if_t *ifp;
    dhd_info_t *dhd = dhdp->info;
    int i;

    ASSERT(bssidx < DHD_MAX_IFS);
    ASSERT(dhdp);

    for (i = 0; i < DHD_MAX_IFS; i++) {
        ifp = dhd->iflist[i];
        if (ifp && (ifp->bssidx == bssidx)) {
            DHD_TRACE(("Index manipulated for %s from %d to %d\n", ifp->name,
                       bssidx, i));
            break;
        }
    }
    return i;
}

static inline int dhd_rxf_enqueue(dhd_pub_t *dhdp, void *skb)
{
    uint32 store_idx;
    uint32 sent_idx;

    if (!skb) {
        DHD_ERROR(("dhd_rxf_enqueue: NULL skb!!!\n"));
        return BCME_ERROR;
    }

    dhd_os_rxflock(dhdp);
    store_idx = dhdp->store_idx;
    sent_idx = dhdp->sent_idx;
    if (dhdp->skbbuf[store_idx] != NULL) {
        /* Make sure the previous packets are processed */
        dhd_os_rxfunlock(dhdp);
        DHD_ERROR(("dhd_rxf_enqueue: pktbuf not consumed %p, store idx %d sent "
                   "idx %d\n",
                   skb, store_idx, sent_idx));
        /* removed msleep here, should use wait_event_timeout if we
         * want to give rx frame thread a chance to run
         */
#if defined(WAIT_DEQUEUE)
        OSL_SLEEP(1);
#endif // endif
        return BCME_ERROR;
    }
    DHD_TRACE(("dhd_rxf_enqueue: Store SKB %p. idx %d -> %d\n", skb, store_idx,
               (store_idx + 1) & (MAXSKBPEND - 1)));
    dhdp->skbbuf[store_idx] = skb;
    dhdp->store_idx = (store_idx + 1) & (MAXSKBPEND - 1);
    dhd_os_rxfunlock(dhdp);

    return BCME_OK;
}

static inline void *dhd_rxf_dequeue(dhd_pub_t *dhdp)
{
    uint32 store_idx;
    uint32 sent_idx;
    void *skb;

    dhd_os_rxflock(dhdp);

    store_idx = dhdp->store_idx;
    sent_idx = dhdp->sent_idx;
    skb = dhdp->skbbuf[sent_idx];

    if (skb == NULL) {
        dhd_os_rxfunlock(dhdp);
        DHD_ERROR(("dhd_rxf_dequeue: Dequeued packet is NULL, store idx %d "
                   "sent idx %d\n",
                   store_idx, sent_idx));
        return NULL;
    }

    dhdp->skbbuf[sent_idx] = NULL;
    dhdp->sent_idx = (sent_idx + 1) & (MAXSKBPEND - 1);

    DHD_TRACE(
        ("dhd_rxf_dequeue: netif_rx_ni(%p), sent idx %d\n", skb, sent_idx));

    dhd_os_rxfunlock(dhdp);

    return skb;
}

int dhd_process_cid_mac(dhd_pub_t *dhdp, bool prepost)
{
    if (prepost) { /* pre process */
        dhd_read_cis(dhdp);
        dhd_check_module_cid(dhdp);
        dhd_check_module_mac(dhdp);
        dhd_set_macaddr_from_file(dhdp);
    } else { /* post process */
        dhd_write_macaddr(&dhdp->mac);
        dhd_clear_cis(dhdp);
    }

    return 0;
}

#if defined(WL_CFG80211) && defined(DHD_FILE_DUMP_EVENT) &&                    \
    defined(DHD_FW_COREDUMP)
static int dhd_wait_for_file_dump(dhd_pub_t *dhdp)
{
    struct net_device *primary_ndev;
    struct bcm_cfg80211 *cfg;
    unsigned long flags = 0;
    primary_ndev = dhd_linux_get_primary_netdev(dhdp);
    if (!primary_ndev) {
        DHD_ERROR(("%s: Cannot find primary netdev\n", __FUNCTION__));
        return BCME_ERROR;
    }
    cfg = wl_get_cfg(primary_ndev);
    if (!cfg) {
        DHD_ERROR(("%s: Cannot find cfg\n", __FUNCTION__));
        return BCME_ERROR;
    }

    DHD_GENERAL_LOCK(dhdp, flags);
    if (DHD_BUS_CHECK_DOWN_OR_DOWN_IN_PROGRESS(dhdp)) {
        DHD_BUS_BUSY_CLEAR_IN_HALDUMP(dhdp);
        dhd_os_busbusy_wake(dhdp);
        DHD_GENERAL_UNLOCK(dhdp, flags);
        DHD_ERROR(
            ("%s: bus is down! can't collect log dump. \n", __FUNCTION__));
        return BCME_ERROR;
    }
    DHD_BUS_BUSY_SET_IN_HALDUMP(dhdp);
    DHD_GENERAL_UNLOCK(dhdp, flags);

    DHD_OS_WAKE_LOCK(dhdp);
    /* check for hal started and only then send event if not clear dump state
     * here */
    if (wl_cfg80211_is_hal_started(cfg)) {
        int timeleft = 0;

        DHD_ERROR(
            ("[DUMP] %s: HAL started. send urgent event\n", __FUNCTION__));
        dhd_dbg_send_urgent_evt(dhdp, NULL, 0);

        DHD_ERROR(("%s: wait to clear dhd_bus_busy_state: 0x%x\n", __FUNCTION__,
                   dhdp->dhd_bus_busy_state));
        timeleft = dhd_os_busbusy_wait_bitmask(dhdp, &dhdp->dhd_bus_busy_state,
                                               DHD_BUS_BUSY_IN_HALDUMP, 0);
        if ((dhdp->dhd_bus_busy_state & DHD_BUS_BUSY_IN_HALDUMP) != 0) {
            DHD_ERROR(("%s: Timed out dhd_bus_busy_state=0x%x\n", __FUNCTION__,
                       dhdp->dhd_bus_busy_state));
        }
    } else {
        DHD_ERROR(
            ("[DUMP] %s: HAL Not started. skip urgent event\n", __FUNCTION__));
    }
    DHD_OS_WAKE_UNLOCK(dhdp);
    /* In case of dhd_os_busbusy_wait_bitmask() timeout,
     * hal dump bit will not be cleared. Hence clearing it here.
     */
    DHD_GENERAL_LOCK(dhdp, flags);
    DHD_BUS_BUSY_CLEAR_IN_HALDUMP(dhdp);
    dhd_os_busbusy_wake(dhdp);
    DHD_GENERAL_UNLOCK(dhdp, flags);

    return BCME_OK;
}
#endif /* WL_CFG80211 && DHD_FILE_DUMP_EVENT && DHD_FW_CORE_DUMP */

// terence 20160615: fix building error if ARP_OFFLOAD_SUPPORT removed
#if defined(PKT_FILTER_SUPPORT)
#if defined(ARP_OFFLOAD_SUPPORT) && !defined(GAN_LITE_NAT_KEEPALIVE_FILTER)
static bool _turn_on_arp_filter(dhd_pub_t *dhd, int op_mode_param)
{
    bool _apply = FALSE;
    /* In case of IBSS mode, apply arp pkt filter */
    if (op_mode_param & DHD_FLAG_IBSS_MODE) {
        _apply = TRUE;
        goto exit;
    }
    /* In case of P2P GO or GC, apply pkt filter to pass arp pkt to host */
    if (op_mode_param & (DHD_FLAG_P2P_GC_MODE | DHD_FLAG_P2P_GO_MODE)) {
        _apply = TRUE;
        goto exit;
    }

exit:
    return _apply;
}
#endif /* !GAN_LITE_NAT_KEEPALIVE_FILTER */

void dhd_set_packet_filter(dhd_pub_t *dhd)
{
    int i;

    DHD_TRACE(("%s: enter\n", __FUNCTION__));
    if (dhd_pkt_filter_enable) {
        for (i = 0; i < dhd->pktfilter_count; i++) {
            dhd_pktfilter_offload_set(dhd, dhd->pktfilter[i]);
        }
    }
}

void dhd_enable_packet_filter(int value, dhd_pub_t *dhd)
{
    int i;

    DHD_ERROR(("%s: enter, value = %d\n", __FUNCTION__, value));
    if ((dhd->op_mode & DHD_FLAG_HOSTAP_MODE) && value &&
        !dhd_conf_get_insuspend(dhd, AP_FILTER_IN_SUSPEND)) {
        DHD_ERROR(("%s: DHD_FLAG_HOSTAP_MODE\n", __FUNCTION__));
        return;
    }
    /* 1 - Enable packet filter, only allow unicast packet to send up */
    /* 0 - Disable packet filter */
    if (dhd_pkt_filter_enable &&
        (!value || (dhd_support_sta_mode(dhd) && !dhd->dhcp_in_progress) ||
         dhd_conf_get_insuspend(dhd, AP_FILTER_IN_SUSPEND))) {
        for (i = 0; i < dhd->pktfilter_count; i++) {
// terence 20160615: fix building error if ARP_OFFLOAD_SUPPORT removed
#if defined(ARP_OFFLOAD_SUPPORT) && !defined(GAN_LITE_NAT_KEEPALIVE_FILTER)
            if (value && (i == DHD_ARP_FILTER_NUM) &&
                !_turn_on_arp_filter(dhd, dhd->op_mode)) {
                DHD_TRACE(("Do not turn on ARP allow list pkt filter:"
                           "val %d, cnt %d, op_mode 0x%x\n",
                           value, i, dhd->op_mode));
                continue;
            }
#endif /* !GAN_LITE_NAT_KEEPALIVE_FILTER */
            dhd_pktfilter_offload_enable(dhd, dhd->pktfilter[i], value,
                                         dhd_master_mode);
        }
    }
}

int dhd_packet_filter_add_remove(dhd_pub_t *dhdp, int add_remove, int num)
{
    char *filterp = NULL;
    int filter_id = 0;

    switch (num) {
        case DHD_BROADCAST_FILTER_NUM:
            filterp = "101 0 0 0 0xFFFFFFFFFFFF 0xFFFFFFFFFFFF";
            filter_id = 0x65;
            break;
        case DHD_MULTICAST4_FILTER_NUM:
            filter_id = 0x66;
            if (FW_SUPPORTED((dhdp), pf6)) {
                if (dhdp->pktfilter[num] != NULL) {
                    dhd_pktfilter_offload_delete(dhdp, filter_id);
                    dhdp->pktfilter[num] = NULL;
                }
                if (!add_remove) {
                    filterp = DISCARD_IPV4_MCAST;
                    add_remove = 1;
                    break;
                }
            }
            filterp = "102 0 0 0 0xFFFFFF 0x01005E";
            break;
        case DHD_MULTICAST6_FILTER_NUM:
            filter_id = 0x67;
            if (FW_SUPPORTED((dhdp), pf6)) {
                if (dhdp->pktfilter[num] != NULL) {
                    dhd_pktfilter_offload_delete(dhdp, filter_id);
                    dhdp->pktfilter[num] = NULL;
                }
                if (!add_remove) {
                    filterp = DISCARD_IPV6_MCAST;
                    add_remove = 1;
                    break;
                }
            }
            filterp = "103 0 0 0 0xFFFF 0x3333";
            break;
        case DHD_MDNS_FILTER_NUM:
            filterp = "104 0 0 0 0xFFFFFFFFFFFF 0x01005E0000FB";
            filter_id = 0x68;
            break;
        case DHD_ARP_FILTER_NUM:
            filterp = "105 0 0 12 0xFFFF 0x0806";
            filter_id = 0x69;
            break;
        case DHD_BROADCAST_ARP_FILTER_NUM:
            filterp = "106 0 0 0 0xFFFFFFFFFFFF0000000000000806"
                      " 0xFFFFFFFFFFFF0000000000000806";
            filter_id = 0x6A;
            break;
        default:
            return -EINVAL;
    }

    /* Add filter */
    if (add_remove) {
        dhdp->pktfilter[num] = filterp;
        dhd_pktfilter_offload_set(dhdp, dhdp->pktfilter[num]);
    } else { /* Delete filter */
        if (dhdp->pktfilter[num]) {
            dhd_pktfilter_offload_delete(dhdp, filter_id);
            dhdp->pktfilter[num] = NULL;
        }
    }

    return 0;
}
#endif /* PKT_FILTER_SUPPORT */

static int dhd_set_suspend(int value, dhd_pub_t *dhd)
{
#ifndef SUPPORT_PM2_ONLY
    int power_mode = PM_MAX;
#endif /* SUPPORT_PM2_ONLY */
    int bcn_li_dtim = 0; /* Default bcn_li_dtim in resume mode is 0 */
    int ret = 0;
#ifdef DHD_USE_EARLYSUSPEND
#ifdef CUSTOM_BCN_TIMEOUT_IN_SUSPEND
    int bcn_timeout = 0;
#endif /* CUSTOM_BCN_TIMEOUT_IN_SUSPEND */
#ifdef CUSTOM_ROAM_TIME_THRESH_IN_SUSPEND
    int roam_time_thresh = 0; /* (ms) */
#endif                        /* CUSTOM_ROAM_TIME_THRESH_IN_SUSPEND */
#ifndef ENABLE_FW_ROAM_SUSPEND
    uint roamvar = 1;
#endif /* ENABLE_FW_ROAM_SUSPEND */
#ifdef ENABLE_BCN_LI_BCN_WAKEUP
    int bcn_li_bcn = 1;
#endif /* ENABLE_BCN_LI_BCN_WAKEUP */
    uint nd_ra_filter = 0;
#ifdef ENABLE_IPMCAST_FILTER
    int ipmcast_l2filter;
#endif /* ENABLE_IPMCAST_FILTER */
#ifdef CUSTOM_EVENT_PM_WAKE
    uint32 pm_awake_thresh = CUSTOM_EVENT_PM_WAKE;
#endif /* CUSTOM_EVENT_PM_WAKE */
#endif /* DHD_USE_EARLYSUSPEND */
#ifdef PASS_ALL_MCAST_PKTS
    struct dhd_info *dhdinfo;
    uint32 allmulti;
    uint i;
#endif /* PASS_ALL_MCAST_PKTS */
#ifdef DYNAMIC_SWOOB_DURATION
#ifndef CUSTOM_INTR_WIDTH
#define CUSTOM_INTR_WIDTH 100
    int intr_width = 0;
#endif /* CUSTOM_INTR_WIDTH */
#endif /* DYNAMIC_SWOOB_DURATION */

#if defined(BCMPCIE)
    int lpas = 0;
    int dtim_period = 0;
    int bcn_interval = 0;
    int bcn_to_dly = 0;
#if defined(CUSTOM_BCN_TIMEOUT_IN_SUSPEND) && defined(DHD_USE_EARLYSUSPEND)
    bcn_timeout = CUSTOM_BCN_TIMEOUT_SETTING;
#else
    int bcn_timeout = CUSTOM_BCN_TIMEOUT_SETTING;
#endif /* CUSTOM_BCN_TIMEOUT_IN_SUSPEND && DHD_USE_EARLYSUSPEND */
#endif /* BCMPCIE */

    if (!dhd) {
        return -ENODEV;
    }

#ifdef PASS_ALL_MCAST_PKTS
    dhdinfo = dhd->info;
#endif /* PASS_ALL_MCAST_PKTS */

    DHD_TRACE(("%s: enter, value = %d in_suspend=%d\n", __FUNCTION__, value,
               dhd->in_suspend));

    dhd_suspend_lock(dhd);

#ifdef CUSTOM_SET_CPUCORE
    DHD_TRACE(("%s set cpucore(suspend%d)\n", __FUNCTION__, value));
    /* set specific cpucore */
    dhd_set_cpucore(dhd, TRUE);
#endif /* CUSTOM_SET_CPUCORE */
    if (dhd->up) {
        if (value && dhd->in_suspend) {
            dhd->early_suspended = 1;
            /* Kernel suspended */
            DHD_ERROR(("%s: force extra Suspend setting\n", __FUNCTION__));

#ifndef SUPPORT_PM2_ONLY
            dhd_wl_ioctl_cmd(dhd, WLC_SET_PM, (char *)&power_mode,
                             sizeof(power_mode), TRUE, 0);
#endif /* SUPPORT_PM2_ONLY */

#ifdef PKT_FILTER_SUPPORT
            /* Enable packet filter,
             * only allow unicast packet to send up
             */
            dhd_enable_packet_filter(1, dhd);
#ifdef APF
            dhd_dev_apf_enable_filter(dhd_linux_get_primary_netdev(dhd));
#endif /* APF */
#endif /* PKT_FILTER_SUPPORT */
#ifdef ARP_OFFLOAD_SUPPORT
            dhd_arp_offload_enable(dhd, TRUE);
#endif /* ARP_OFFLOAD_SUPPORT */

#ifdef PASS_ALL_MCAST_PKTS
            allmulti = 0;
            for (i = 0; i < DHD_MAX_IFS; i++) {
                if (dhdinfo->iflist[i] && dhdinfo->iflist[i]->net) {
                    ret = dhd_iovar(dhd, i, "allmulti", (char *)&allmulti,
                                    sizeof(allmulti), NULL, 0, TRUE);
                }
                if (ret < 0) {
                    DHD_ERROR(("%s allmulti failed %d\n", __FUNCTION__, ret));
                }
            }
#endif /* PASS_ALL_MCAST_PKTS */

            /* If DTIM skip is set up as default, force it to wake
             * each third DTIM for better power savings.  Note that
             * one side effect is a chance to miss BC/MC packet.
             */
#ifdef WLTDLS
            /* Do not set bcn_li_ditm on WFD mode */
            if (dhd->tdls_mode) {
                bcn_li_dtim = 0;
            } else
#endif /* WLTDLS */
#if defined(BCMPCIE)
                bcn_li_dtim = dhd_get_suspend_bcn_li_dtim(dhd, &dtim_period,
                                                          &bcn_interval);
            ret = dhd_iovar(dhd, 0, "bcn_li_dtim", (char *)&bcn_li_dtim,
                            sizeof(bcn_li_dtim), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s bcn_li_dtim failed %d\n", __FUNCTION__, ret));
            }
            if ((bcn_li_dtim * dtim_period * bcn_interval) >=
                MIN_DTIM_FOR_ROAM_THRES_EXTEND) {
                /*
                 * Increase max roaming threshold from 2 secs to 8 secs
                 * the real roam threshold is MIN(max_roam_threshold,
                 * bcn_timeout/2)
                 */
                lpas = 1;
                ret = dhd_iovar(dhd, 0, "lpas", (char *)&lpas, sizeof(lpas),
                                NULL, 0, TRUE);
                if (ret < 0) {
                    DHD_ERROR(("%s lpas failed %d\n", __FUNCTION__, ret));
                }
                bcn_to_dly = 1;
                /*
                 * if bcn_to_dly is 1, the real roam threshold is
                 * MIN(max_roam_threshold, bcn_timeout -1);
                 * notify link down event after roaming procedure complete
                 * if we hit bcn_timeout while we are in roaming progress.
                 */
                ret = dhd_iovar(dhd, 0, "bcn_to_dly", (char *)&bcn_to_dly,
                                sizeof(bcn_to_dly), NULL, 0, TRUE);
                if (ret < 0) {
                    DHD_ERROR(("%s bcn_to_dly failed %d\n", __FUNCTION__, ret));
                }
                /* Increase beacon timeout to 6 secs or use bigger one */
                bcn_timeout = max(bcn_timeout, BCN_TIMEOUT_IN_SUSPEND);
                ret = dhd_iovar(dhd, 0, "bcn_timeout", (char *)&bcn_timeout,
                                sizeof(bcn_timeout), NULL, 0, TRUE);
                if (ret < 0) {
                    DHD_ERROR(
                        ("%s bcn_timeout failed %d\n", __FUNCTION__, ret));
                }
            }
#else
            bcn_li_dtim = dhd_get_suspend_bcn_li_dtim(dhd);
            if (dhd_iovar(dhd, 0, "bcn_li_dtim", (char *)&bcn_li_dtim,
                          sizeof(bcn_li_dtim), NULL, 0, TRUE) < 0) {
                DHD_ERROR(("%s: set dtim failed\n", __FUNCTION__));
            }
#endif /* BCMPCIE */
#ifdef WL_CFG80211
            /* Disable cfg80211 feature events during suspend */
            ret = wl_cfg80211_config_suspend_events(
                dhd_linux_get_primary_netdev(dhd), FALSE);
            if (ret < 0) {
                DHD_ERROR(("failed to disable events (%d)\n", ret));
            }
#endif /* WL_CFG80211 */
#ifdef DHD_USE_EARLYSUSPEND
#ifdef CUSTOM_BCN_TIMEOUT_IN_SUSPEND
            bcn_timeout = CUSTOM_BCN_TIMEOUT_IN_SUSPEND;
            ret = dhd_iovar(dhd, 0, "bcn_timeout", (char *)&bcn_timeout,
                            sizeof(bcn_timeout), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s bcn_timeout failed %d\n", __FUNCTION__, ret));
            }
#endif /* CUSTOM_BCN_TIMEOUT_IN_SUSPEND */
#ifdef CUSTOM_ROAM_TIME_THRESH_IN_SUSPEND
            roam_time_thresh = CUSTOM_ROAM_TIME_THRESH_IN_SUSPEND;
            ret =
                dhd_iovar(dhd, 0, "roam_time_thresh", (char *)&roam_time_thresh,
                          sizeof(roam_time_thresh), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(
                    ("%s roam_time_thresh failed %d\n", __FUNCTION__, ret));
            }
#endif /* CUSTOM_ROAM_TIME_THRESH_IN_SUSPEND */
#ifndef ENABLE_FW_ROAM_SUSPEND
            /* Disable firmware roaming during suspend */
            ret = dhd_iovar(dhd, 0, "roam_off", (char *)&roamvar,
                            sizeof(roamvar), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s roam_off failed %d\n", __FUNCTION__, ret));
            }
#endif /* ENABLE_FW_ROAM_SUSPEND */
#ifdef ENABLE_BCN_LI_BCN_WAKEUP
            if (bcn_li_dtim) {
                bcn_li_bcn = 0;
            }
            ret = dhd_iovar(dhd, 0, "bcn_li_bcn", (char *)&bcn_li_bcn,
                            sizeof(bcn_li_bcn), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s bcn_li_bcn failed %d\n", __FUNCTION__, ret));
            }
#endif /* ENABLE_BCN_LI_BCN_WAKEUP */
#if defined(WL_CFG80211) && defined(WL_BCNRECV)
            ret = wl_ohos_bcnrecv_suspend(dhd_linux_get_primary_netdev(dhd));
            if (ret != BCME_OK) {
                DHD_ERROR(("failed to stop beacon recv event on"
                           " suspend state (%d)\n",
                           ret));
            }
#endif /* WL_CFG80211 && WL_BCNRECV */
#ifdef NDO_CONFIG_SUPPORT
            if (dhd->ndo_enable) {
                if (!dhd->ndo_host_ip_overflow) {
                    /* enable ND offload on suspend */
                    ret = dhd_ndo_enable(dhd, TRUE);
                    if (ret < 0) {
                        DHD_ERROR(("%s: failed to enable NDO\n", __FUNCTION__));
                    }
                } else {
                    DHD_INFO(("%s: NDO disabled on suspend due to"
                              "HW capacity\n",
                              __FUNCTION__));
                }
            }
#endif /* NDO_CONFIG_SUPPORT */
#ifndef APF
            if (FW_SUPPORTED(dhd, ndoe))
#else
            if (FW_SUPPORTED(dhd, ndoe) && !FW_SUPPORTED(dhd, apf))
#endif /* APF */
            {
                /* enable IPv6 RA filter in  firmware during suspend */
                nd_ra_filter = 1;
                ret = dhd_iovar(dhd, 0, "nd_ra_filter_enable",
                                (char *)&nd_ra_filter, sizeof(nd_ra_filter),
                                NULL, 0, TRUE);
                if (ret < 0) {
                    DHD_ERROR(("failed to set nd_ra_filter (%d)\n", ret));
                }
            }
            dhd_os_suppress_logging(dhd, TRUE);
#ifdef ENABLE_IPMCAST_FILTER
            ipmcast_l2filter = 1;
            ret =
                dhd_iovar(dhd, 0, "ipmcast_l2filter", (char *)&ipmcast_l2filter,
                          sizeof(ipmcast_l2filter), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("failed to set ipmcast_l2filter (%d)\n", ret));
            }
#endif /* ENABLE_IPMCAST_FILTER */
#ifdef DYNAMIC_SWOOB_DURATION
            intr_width = CUSTOM_INTR_WIDTH;
            ret = dhd_iovar(dhd, 0, "bus:intr_width", (char *)&intr_width,
                            sizeof(intr_width), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("failed to set intr_width (%d)\n", ret));
            }
#endif /* DYNAMIC_SWOOB_DURATION */
#ifdef CUSTOM_EVENT_PM_WAKE
            pm_awake_thresh = CUSTOM_EVENT_PM_WAKE * 0x4;
            ret = dhd_iovar(dhd, 0, "const_awake_thresh",
                            (char *)&pm_awake_thresh, sizeof(pm_awake_thresh),
                            NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s set const_awake_thresh failed %d\n",
                           __FUNCTION__, ret));
            }
#endif /* CUSTOM_EVENT_PM_WAKE */
#ifdef CONFIG_SILENT_ROAM
            if (!dhd->sroamed) {
                ret = dhd_sroam_set_mon(dhd, TRUE);
                if (ret < 0) {
                    DHD_ERROR(("%s set sroam failed %d\n", __FUNCTION__, ret));
                }
            }
            dhd->sroamed = FALSE;
#endif /* CONFIG_SILENT_ROAM */
#endif /* DHD_USE_EARLYSUSPEND */
        } else {
            dhd->early_suspended = 0;
            /* Kernel resumed  */
            DHD_ERROR(("%s: Remove extra suspend setting \n", __FUNCTION__));
#ifdef DYNAMIC_SWOOB_DURATION
            intr_width = 0;
            ret = dhd_iovar(dhd, 0, "bus:intr_width", (char *)&intr_width,
                            sizeof(intr_width), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("failed to set intr_width (%d)\n", ret));
            }
#endif /* DYNAMIC_SWOOB_DURATION */
#ifndef SUPPORT_PM2_ONLY
            power_mode = PM_FAST;
            dhd_wl_ioctl_cmd(dhd, WLC_SET_PM, (char *)&power_mode,
                             sizeof(power_mode), TRUE, 0);
#endif /* SUPPORT_PM2_ONLY */
#if defined(WL_CFG80211) && defined(WL_BCNRECV)
            ret = wl_ohos_bcnrecv_resume(dhd_linux_get_primary_netdev(dhd));
            if (ret != BCME_OK) {
                DHD_ERROR(("failed to resume beacon recv state (%d)\n", ret));
            }
#endif /* WL_CF80211 && WL_BCNRECV */
#ifdef ARP_OFFLOAD_SUPPORT
            dhd_arp_offload_enable(dhd, FALSE);
#endif /* ARP_OFFLOAD_SUPPORT */
#ifdef PKT_FILTER_SUPPORT
            /* disable pkt filter */
            dhd_enable_packet_filter(0, dhd);
#ifdef APF
            dhd_dev_apf_disable_filter(dhd_linux_get_primary_netdev(dhd));
#endif /* APF */
#endif /* PKT_FILTER_SUPPORT */
#ifdef PASS_ALL_MCAST_PKTS
            allmulti = 1;
            for (i = 0; i < DHD_MAX_IFS; i++) {
                if (dhdinfo->iflist[i] && dhdinfo->iflist[i]->net) {
                    ret = dhd_iovar(dhd, i, "allmulti", (char *)&allmulti,
                                    sizeof(allmulti), NULL, 0, TRUE);
                }
                if (ret < 0) {
                    DHD_ERROR(("%s: allmulti failed:%d\n", __FUNCTION__, ret));
                }
            }
#endif /* PASS_ALL_MCAST_PKTS */
#if defined(BCMPCIE)
            /* restore pre-suspend setting */
            ret = dhd_iovar(dhd, 0, "bcn_li_dtim", (char *)&bcn_li_dtim,
                            sizeof(bcn_li_dtim), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s:bcn_li_ditm failed:%d\n", __FUNCTION__, ret));
            }
            ret = dhd_iovar(dhd, 0, "lpas", (char *)&lpas, sizeof(lpas), NULL,
                            0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s:lpas failed:%d\n", __FUNCTION__, ret));
            }
            ret = dhd_iovar(dhd, 0, "bcn_to_dly", (char *)&bcn_to_dly,
                            sizeof(bcn_to_dly), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s:bcn_to_dly failed:%d\n", __FUNCTION__, ret));
            }
            ret = dhd_iovar(dhd, 0, "bcn_timeout", (char *)&bcn_timeout,
                            sizeof(bcn_timeout), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s:bcn_timeout failed:%d\n", __FUNCTION__, ret));
            }
#else
            /* restore pre-suspend setting for dtim_skip */
            ret = dhd_iovar(dhd, 0, "bcn_li_dtim", (char *)&bcn_li_dtim,
                            sizeof(bcn_li_dtim), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s:bcn_li_ditm fail:%d\n", __FUNCTION__, ret));
            }
#endif /* BCMPCIE */
#ifdef DHD_USE_EARLYSUSPEND
#ifdef CUSTOM_BCN_TIMEOUT_IN_SUSPEND
            bcn_timeout = CUSTOM_BCN_TIMEOUT;
            ret = dhd_iovar(dhd, 0, "bcn_timeout", (char *)&bcn_timeout,
                            sizeof(bcn_timeout), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s:bcn_timeout failed:%d\n", __FUNCTION__, ret));
            }
#endif /* CUSTOM_BCN_TIMEOUT_IN_SUSPEND */
#ifdef CUSTOM_ROAM_TIME_THRESH_IN_SUSPEND
            roam_time_thresh = 0x7D0;
            ret =
                dhd_iovar(dhd, 0, "roam_time_thresh", (char *)&roam_time_thresh,
                          sizeof(roam_time_thresh), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(
                    ("%s:roam_time_thresh failed:%d\n", __FUNCTION__, ret));
            }

#endif /* CUSTOM_ROAM_TIME_THRESH_IN_SUSPEND */
#ifndef ENABLE_FW_ROAM_SUSPEND
            roamvar = dhd_roam_disable;
            ret = dhd_iovar(dhd, 0, "roam_off", (char *)&roamvar,
                            sizeof(roamvar), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s: roam_off fail:%d\n", __FUNCTION__, ret));
            }
#endif /* ENABLE_FW_ROAM_SUSPEND */
#ifdef ENABLE_BCN_LI_BCN_WAKEUP
            ret = dhd_iovar(dhd, 0, "bcn_li_bcn", (char *)&bcn_li_bcn,
                            sizeof(bcn_li_bcn), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s: bcn_li_bcn failed:%d\n", __FUNCTION__, ret));
            }
#endif /* ENABLE_BCN_LI_BCN_WAKEUP */
#ifdef NDO_CONFIG_SUPPORT
            if (dhd->ndo_enable) {
                /* Disable ND offload on resume */
                ret = dhd_ndo_enable(dhd, FALSE);
                if (ret < 0) {
                    DHD_ERROR(("%s: failed to disable NDO\n", __FUNCTION__));
                }
            }
#endif /* NDO_CONFIG_SUPPORT */
#ifndef APF
            if (FW_SUPPORTED(dhd, ndoe))
#else
            if (FW_SUPPORTED(dhd, ndoe) && !FW_SUPPORTED(dhd, apf))
#endif /* APF */
            {
                /* disable IPv6 RA filter in  firmware during suspend */
                nd_ra_filter = 0;
                ret = dhd_iovar(dhd, 0, "nd_ra_filter_enable",
                                (char *)&nd_ra_filter, sizeof(nd_ra_filter),
                                NULL, 0, TRUE);
                if (ret < 0) {
                    DHD_ERROR(("failed to set nd_ra_filter (%d)\n", ret));
                }
            }
            dhd_os_suppress_logging(dhd, FALSE);
#ifdef ENABLE_IPMCAST_FILTER
            ipmcast_l2filter = 0;
            ret =
                dhd_iovar(dhd, 0, "ipmcast_l2filter", (char *)&ipmcast_l2filter,
                          sizeof(ipmcast_l2filter), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("failed to clear ipmcast_l2filter ret:%d", ret));
            }
#endif /* ENABLE_IPMCAST_FILTER */
#ifdef CUSTOM_EVENT_PM_WAKE
            ret = dhd_iovar(dhd, 0, "const_awake_thresh",
                            (char *)&pm_awake_thresh, sizeof(pm_awake_thresh),
                            NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s set const_awake_thresh failed %d\n",
                           __FUNCTION__, ret));
            }
#endif /* CUSTOM_EVENT_PM_WAKE */
#ifdef CONFIG_SILENT_ROAM
            ret = dhd_sroam_set_mon(dhd, FALSE);
            if (ret < 0) {
                DHD_ERROR(("%s set sroam failed %d\n", __FUNCTION__, ret));
            }
#endif /* CONFIG_SILENT_ROAM */
#endif /* DHD_USE_EARLYSUSPEND */
#ifdef WL_CFG80211
            /* Enable cfg80211 feature events during resume */
            ret = wl_cfg80211_config_suspend_events(
                dhd_linux_get_primary_netdev(dhd), TRUE);
            if (ret < 0) {
                DHD_ERROR(("failed to enable events (%d)\n", ret));
            }
#endif /* WL_CFG80211 */
#ifdef DHD_LB_IRQSET
            dhd_irq_set_affinity(dhd, dhd->info->cpumask_primary);
#endif /* DHD_LB_IRQSET */
        }
    }
    dhd_suspend_unlock(dhd);

    return 0;
}

static int dhd_suspend_resume_helper(struct dhd_info *dhd, int val, int force)
{
    dhd_pub_t *dhdp = &dhd->pub;
    int ret = 0;

    DHD_OS_WAKE_LOCK(dhdp);
    DHD_PERIM_LOCK(dhdp);

    /* Set flag when early suspend was called */
    dhdp->in_suspend = val;
    if ((force || !dhdp->suspend_disable_flag) &&
        (dhd_support_sta_mode(dhdp) ||
         dhd_conf_get_insuspend(dhdp, ALL_IN_SUSPEND))) {
        ret = dhd_set_suspend(val, dhdp);
    }

    DHD_PERIM_UNLOCK(dhdp);
    DHD_OS_WAKE_UNLOCK(dhdp);
    return ret;
}

#if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND)
static void dhd_early_suspend(struct early_suspend *h)
{
    struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
    DHD_TRACE_HW4(("%s: enter\n", __FUNCTION__));

    if (dhd && (dhd->pub.conf->suspend_mode == EARLY_SUSPEND ||
                dhd->pub.conf->suspend_mode == SUSPEND_MODE_2)) {
        dhd_suspend_resume_helper(dhd, 1, 0);
        if (dhd->pub.conf->suspend_mode == EARLY_SUSPEND) {
            dhd_conf_set_suspend_resume(&dhd->pub, 1);
        }
    }
}

static void dhd_late_resume(struct early_suspend *h)
{
    struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
    DHD_TRACE_HW4(("%s: enter\n", __FUNCTION__));

    if (dhd && (dhd->pub.conf->suspend_mode == EARLY_SUSPEND ||
                dhd->pub.conf->suspend_mode == SUSPEND_MODE_2)) {
        dhd_conf_set_suspend_resume(&dhd->pub, 0);
        if (dhd->pub.conf->suspend_mode == EARLY_SUSPEND) {
            dhd_suspend_resume_helper(dhd, 0, 0);
        }
    }
}
#endif /* CONFIG_HAS_EARLYSUSPEND && DHD_USE_EARLYSUSPEND */

/*
 * Generalized timeout mechanism.  Uses spin sleep with exponential back-off
 * until the sleep time reaches one jiffy, then switches over to task delay.
 * Usage
 *
 *      dhd_timeout_start(&tmo, usec);
 *      while (!dhd_timeout_expired(&tmo))
 *              if (poll_something())
 *                      break;
 *      if (dhd_timeout_expired(&tmo))
 *              fatal();
 */

void dhd_timeout_start(dhd_timeout_t *tmo, uint usec)
{
    tmo->limit = usec;
    tmo->increment = 0;
    tmo->elapsed = 0;
    tmo->tick = jiffies_to_usecs(1);
}

int dhd_timeout_expired(dhd_timeout_t *tmo)
{
    /* Does nothing the first call */
    if (tmo->increment == 0) {
        tmo->increment = 1;
        return 0;
    }

    if (tmo->elapsed >= tmo->limit) {
        return 1;
    }

    /* Add the delay that's about to take place */
    tmo->elapsed += tmo->increment;

    if ((!CAN_SLEEP()) || tmo->increment < tmo->tick) {
        OSL_DELAY(tmo->increment);
        tmo->increment *= 0x2;
        if (tmo->increment > tmo->tick) {
            tmo->increment = tmo->tick;
        }
    } else {
        /*
         * OSL_SLEEP() is corresponding to usleep_range(). In non-atomic
         * context where the exact wakeup time is flexible, it would be good
         * to use usleep_range() instead of udelay(). It takes a few advantages
         * such as improving responsiveness and reducing power.
         */
        OSL_SLEEP(jiffies_to_msecs(1));
    }

    return 0;
}

int dhd_net2idx(dhd_info_t *dhd, struct net_device *net)
{
    int i = 0;

    if (!dhd) {
        DHD_ERROR(("%s : DHD_BAD_IF return\n", __FUNCTION__));
        return DHD_BAD_IF;
    }

    while (i < DHD_MAX_IFS) {
        if (dhd->iflist[i] && dhd->iflist[i]->net &&
            (dhd->iflist[i]->net == net)) {
            return i;
        }
        i++;
    }

    return DHD_BAD_IF;
}

struct net_device *dhd_idx2net(void *pub, int ifidx)
{
    struct dhd_pub *dhd_pub = (struct dhd_pub *)pub;
    struct dhd_info *dhd_info;

    if (!dhd_pub || ifidx < 0 || ifidx >= DHD_MAX_IFS) {
        return NULL;
    }
    dhd_info = dhd_pub->info;
    if (dhd_info && dhd_info->iflist[ifidx]) {
        return dhd_info->iflist[ifidx]->net;
    }
    return NULL;
}

int dhd_ifname2idx(dhd_info_t *dhd, char *name)
{
    int i = DHD_MAX_IFS;

    ASSERT(dhd);

    if (name == NULL || *name == '\0') {
        return 0;
    }

    while (--i > 0) {
        if (dhd->iflist[i] &&
            !strncmp(dhd->iflist[i]->dngl_name, name, IFNAMSIZ)) {
            break;
        }
    }

    DHD_TRACE(("%s: return idx %d for \"%s\"\n", __FUNCTION__, i, name));

    return i; /* default - the primary interface */
}

char *dhd_ifname(dhd_pub_t *dhdp, int ifidx)
{
    dhd_info_t *dhd = (dhd_info_t *)dhdp->info;

    ASSERT(dhd);

    if (ifidx < 0 || ifidx >= DHD_MAX_IFS) {
        DHD_ERROR(("%s: ifidx %d out of range\n", __FUNCTION__, ifidx));
        return "<if_bad>";
    }

    if (dhd->iflist[ifidx] == NULL) {
        DHD_ERROR(("%s: null i/f %d\n", __FUNCTION__, ifidx));
        return "<if_null>";
    }

    if (dhd->iflist[ifidx]->net) {
        return dhd->iflist[ifidx]->net->name;
    }

    return "<if_none>";
}

uint8 *dhd_bssidx2bssid(dhd_pub_t *dhdp, int idx)
{
    int i;
    dhd_info_t *dhd = (dhd_info_t *)dhdp;

    ASSERT(dhd);
    for (i = 0; i < DHD_MAX_IFS; i++) {
        if (dhd->iflist[i] && dhd->iflist[i]->bssidx == idx) {
            return dhd->iflist[i]->mac_addr;
        }
    }

    return NULL;
}

static void _dhd_set_multicast_list(dhd_info_t *dhd, int ifidx)
{
    struct net_device *dev;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
    struct netdev_hw_addr *ha;
#else
    struct dev_mc_list *mclist;
#endif
    uint32 allmulti, cnt;

    wl_ioctl_t ioc;
    char *buf, *bufp;
    uint buflen;
    int ret;

#ifdef MCAST_LIST_ACCUMULATION
    int i;
    uint32 cnt_iface[DHD_MAX_IFS];
    cnt = 0;
    allmulti = 0;

    for (i = 0; i < DHD_MAX_IFS; i++) {
        if (dhd->iflist[i]) {
            dev = dhd->iflist[i]->net;
            if (!dev) {
                continue;
            }
            netif_addr_lock_bh(dev);
            cnt_iface[i] = netdev_mc_count(dev);
            cnt += cnt_iface[i];
            netif_addr_unlock_bh(dev);

            /* Determine initial value of allmulti flag */
            allmulti |= (dev->flags & IFF_ALLMULTI) ? TRUE : FALSE;
        }
    }
#else /* !MCAST_LIST_ACCUMULATION */
    if (!dhd->iflist[ifidx]) {
        DHD_ERROR(("%s : dhd->iflist[%d] was NULL\n", __FUNCTION__, ifidx));
        return;
    }
    dev = dhd->iflist[ifidx]->net;
    if (!dev) {
        return;
    }
    netif_addr_lock_bh(dev);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
    cnt = netdev_mc_count(dev);
#else
    cnt = dev->mc_count;
#endif /* LINUX_VERSION_CODE */

    netif_addr_unlock_bh(dev);

    /* Determine initial value of allmulti flag */
    allmulti = (dev->flags & IFF_ALLMULTI) ? TRUE : FALSE;
#endif /* MCAST_LIST_ACCUMULATION */

#ifdef PASS_ALL_MCAST_PKTS
#ifdef PKT_FILTER_SUPPORT
    if (!dhd->pub.early_suspended)
#endif /* PKT_FILTER_SUPPORT */
        allmulti = TRUE;
#endif /* PASS_ALL_MCAST_PKTS */

    /* Send down the multicast list first. */

    buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETHER_ADDR_LEN);
    if (!(bufp = buf = MALLOC(dhd->pub.osh, buflen))) {
        DHD_ERROR(("%s: out of memory for mcast_list, cnt %d\n",
                   dhd_ifname(&dhd->pub, ifidx), cnt));
        return;
    }

    strncpy(bufp, "mcast_list", buflen - 1);
    bufp[buflen - 1] = '\0';
    bufp += strlen("mcast_list") + 1;

    cnt = htol32(cnt);
    memcpy(bufp, &cnt, sizeof(cnt));
    bufp += sizeof(cnt);

#ifdef MCAST_LIST_ACCUMULATION
    for (i = 0; i < DHD_MAX_IFS; i++) {
        if (dhd->iflist[i]) {
            DHD_TRACE(("_dhd_set_multicast_list: ifidx %d\n", i));
            dev = dhd->iflist[i]->net;

            netif_addr_lock_bh(dev);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
            netdev_for_each_mc_addr(ha, dev)
            {
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
                if (!cnt_iface[i]) {
                    break;
                }
                memcpy(bufp, ha->addr, ETHER_ADDR_LEN);
                bufp += ETHER_ADDR_LEN;
                DHD_TRACE(("_dhd_set_multicast_list: cnt "
                           "%d " MACDBG "\n",
                           cnt_iface[i], MAC2STRDBG(ha->addr)));
                cnt_iface[i]--;
            }
            netif_addr_unlock_bh(dev);
        }
    }
#else /* !MCAST_LIST_ACCUMULATION */
    netif_addr_lock_bh(dev);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
    netdev_for_each_mc_addr(ha, dev)
    {
        if (!cnt) {
            break;
        }
        memcpy(bufp, ha->addr, ETHER_ADDR_LEN);
        bufp += ETHER_ADDR_LEN;
        cnt--;
    }
#else
    for (mclist = dev->mc_list; (mclist && (cnt > 0));
         cnt--, mclist = mclist->next) {
        memcpy(bufp, (void *)mclist->dmi_addr, ETHER_ADDR_LEN);
        bufp += ETHER_ADDR_LEN;
    }
#endif /* LINUX_VERSION_CODE */
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
    netif_addr_unlock_bh(dev);
#endif /* MCAST_LIST_ACCUMULATION */

    memset(&ioc, 0, sizeof(ioc));
    ioc.cmd = WLC_SET_VAR;
    ioc.buf = buf;
    ioc.len = buflen;
    ioc.set = TRUE;

    ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
    if (ret < 0) {
        DHD_ERROR(("%s: set mcast_list failed, cnt %d\n",
                   dhd_ifname(&dhd->pub, ifidx), cnt));
        allmulti = cnt ? TRUE : allmulti;
    }

    MFREE(dhd->pub.osh, buf, buflen);

    /* Now send the allmulti setting.  This is based on the setting in the
     * net_device flags, but might be modified above to be turned on if we
     * were trying to set some addresses and dongle rejected it...
     */

    allmulti = htol32(allmulti);
    ret = dhd_iovar(&dhd->pub, ifidx, "allmulti", (char *)&allmulti,
                    sizeof(allmulti), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s: set allmulti %d failed\n", dhd_ifname(&dhd->pub, ifidx),
                   ltoh32(allmulti)));
    }

    /* Finally, pick up the PROMISC flag as well, like the NIC driver does */

#ifdef MCAST_LIST_ACCUMULATION
    allmulti = 0;
    for (i = 0; i < DHD_MAX_IFS; i++) {
        if (dhd->iflist[i]) {
            dev = dhd->iflist[i]->net;
            allmulti |= (dev->flags & IFF_PROMISC) ? TRUE : FALSE;
        }
    }
#else
    allmulti = (dev->flags & IFF_PROMISC) ? TRUE : FALSE;
#endif /* MCAST_LIST_ACCUMULATION */

    allmulti = htol32(allmulti);

    memset(&ioc, 0, sizeof(ioc));
    ioc.cmd = WLC_SET_PROMISC;
    ioc.buf = &allmulti;
    ioc.len = sizeof(allmulti);
    ioc.set = TRUE;

    ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
    if (ret < 0) {
        DHD_ERROR(("%s: set promisc %d failed\n", dhd_ifname(&dhd->pub, ifidx),
                   ltoh32(allmulti)));
    }
}

int _dhd_set_mac_address(dhd_info_t *dhd, int ifidx, uint8 *addr,
                         bool skip_stop)
{
    int ret;

#ifdef DHD_NOTIFY_MAC_CHANGED
    if (skip_stop) {
        WL_MSG(dhd_ifname(&dhd->pub, ifidx), "close dev for mac changing\n");
        dhd->pub.skip_dhd_stop = TRUE;
        dev_close(dhd->iflist[ifidx]->net);
    }
#endif /* DHD_NOTIFY_MAC_CHANGED */

    ret = dhd_iovar(&dhd->pub, ifidx, "cur_etheraddr", (char *)addr,
                    ETHER_ADDR_LEN, NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s: set cur_etheraddr %pM failed ret=%d\n",
                   dhd_ifname(&dhd->pub, ifidx), addr, ret));
        goto exit;
    } else {
        memcpy(dhd->iflist[ifidx]->net->dev_addr, addr, ETHER_ADDR_LEN);
        if (ifidx == 0) {
            memcpy(dhd->pub.mac.octet, addr, ETHER_ADDR_LEN);
        }
        WL_MSG(dhd_ifname(&dhd->pub, ifidx), "MACID %pM is overwritten\n",
               addr);
    }

exit:
#ifdef DHD_NOTIFY_MAC_CHANGED
    if (skip_stop) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 0, 0))
        dev_open(dhd->iflist[ifidx]->net, NULL);
#else
        dev_open(dhd->iflist[ifidx]->net);
#endif
        dhd->pub.skip_dhd_stop = FALSE;
        WL_MSG(dhd_ifname(&dhd->pub, ifidx), "notify mac changed done\n");
    }
#endif /* DHD_NOTIFY_MAC_CHANGED */

    return ret;
}

#ifdef DHD_PSTA
/* Get psta/psr configuration configuration */
int dhd_get_psta_mode(dhd_pub_t *dhdp)
{
    dhd_info_t *dhd = dhdp->info;
    return (int)dhd->psta_mode;
}
/* Set psta/psr configuration configuration */
int dhd_set_psta_mode(dhd_pub_t *dhdp, uint32 val)
{
    dhd_info_t *dhd = dhdp->info;
    dhd->psta_mode = val;
    return 0;
}
#endif /* DHD_PSTA */

#if (defined(DHD_WET) || defined(DHD_MCAST_REGEN) || defined(DHD_L2_FILTER))
static void dhd_update_rx_pkt_chainable_state(dhd_pub_t *dhdp, uint32 idx)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;

    ASSERT(idx < DHD_MAX_IFS);

    ifp = dhd->iflist[idx];

    if (
#ifdef DHD_L2_FILTER
        (ifp->block_ping) ||
#endif // endif
#ifdef DHD_WET
        (dhd->wet_mode) ||
#endif // endif
#ifdef DHD_MCAST_REGEN
        (ifp->mcast_regen_bss_enable) ||
#endif // endif
        FALSE) {
        ifp->rx_pkt_chainable = FALSE;
    }
}
#endif /* DHD_WET || DHD_MCAST_REGEN || DHD_L2_FILTER */

#ifdef DHD_WET
/* Get wet configuration configuration */
int dhd_get_wet_mode(dhd_pub_t *dhdp)
{
    dhd_info_t *dhd = dhdp->info;
    return (int)dhd->wet_mode;
}

/* Set wet configuration configuration */
int dhd_set_wet_mode(dhd_pub_t *dhdp, uint32 val)
{
    dhd_info_t *dhd = dhdp->info;
    dhd->wet_mode = val;
    dhd_update_rx_pkt_chainable_state(dhdp, 0);
    return 0;
}
#endif /* DHD_WET */

#if defined(WL_CFG80211) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
int32 dhd_role_to_nl80211_iftype(int32 role)
{
    switch (role) {
        case WLC_E_IF_ROLE_STA:
            return NL80211_IFTYPE_STATION;
        case WLC_E_IF_ROLE_AP:
            return NL80211_IFTYPE_AP;
        case WLC_E_IF_ROLE_WDS:
            return NL80211_IFTYPE_WDS;
        case WLC_E_IF_ROLE_P2P_GO:
            return NL80211_IFTYPE_P2P_GO;
        case WLC_E_IF_ROLE_P2P_CLIENT:
            return NL80211_IFTYPE_P2P_CLIENT;
        case WLC_E_IF_ROLE_IBSS:
        case WLC_E_IF_ROLE_NAN:
            return NL80211_IFTYPE_ADHOC;
        default:
            return NL80211_IFTYPE_UNSPECIFIED;
    }
}
#endif /* WL_CFG80211 && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */

static void dhd_ifadd_event_handler(void *handle, void *event_info, u8 event)
{
    dhd_info_t *dhd = handle;
    dhd_if_event_t *if_event = event_info;
    int ifidx, bssidx;
    int ret;
#if defined(WL_CFG80211) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
    struct wl_if_event_info info;
#if defined(WLDWDS) && defined(FOURADDR_AUTO_BRG)
    struct net_device *ndev = NULL;
#endif
#else
    struct net_device *ndev;
#endif /* WL_CFG80211 && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */

    BCM_REFERENCE(ret);
    if (event != DHD_WQ_WORK_IF_ADD) {
        DHD_ERROR(("%s: unexpected event \n", __FUNCTION__));
        return;
    }

    if (!dhd) {
        DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
        return;
    }

    if (!if_event) {
        DHD_ERROR(("%s: event data is null \n", __FUNCTION__));
        return;
    }

    dhd_net_if_lock_local(dhd);
    DHD_OS_WAKE_LOCK(&dhd->pub);
    DHD_PERIM_LOCK(&dhd->pub);

    ifidx = if_event->event.ifidx;
    bssidx = if_event->event.bssidx;
    DHD_TRACE(("%s: registering if with ifidx %d\n", __FUNCTION__, ifidx));

#if defined(WL_CFG80211) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
    if (if_event->event.ifidx > 0) {
        u8 *mac_addr;
        bzero(&info, sizeof(info));
        info.ifidx = ifidx;
        info.bssidx = bssidx;
        info.role = if_event->event.role;
        strncpy(info.name, if_event->name, IFNAMSIZ);
        if (is_valid_ether_addr(if_event->mac)) {
            mac_addr = if_event->mac;
        } else {
            mac_addr = NULL;
        }

#ifdef WLEASYMESH
        if ((ndev = wl_cfg80211_post_ifcreate(dhd->pub.info->iflist[0]->net,
                                              &info, mac_addr, if_event->name,
                                              true)) == NULL)
#else
        if (wl_cfg80211_post_ifcreate(dhd->pub.info->iflist[0]->net, &info,
                                      mac_addr, NULL, true) == NULL)
#endif
        {
            /* Do the post interface create ops */
            DHD_ERROR(("Post ifcreate ops failed. Returning \n"));
            goto done;
        }
    }
#else
    /* The interface name in host and in event msg are same */
    /* if name in event msg is used to create dongle if list on host */
    ndev = dhd_allocate_if(&dhd->pub, ifidx, if_event->name, if_event->mac,
                           bssidx, TRUE, if_event->name);
    if (!ndev) {
        DHD_ERROR(("%s: net device alloc failed  \n", __FUNCTION__));
        goto done;
    }

    DHD_PERIM_UNLOCK(&dhd->pub);
    ret = dhd_register_if(&dhd->pub, ifidx, TRUE);
    DHD_PERIM_LOCK(&dhd->pub);
    if (ret != BCME_OK) {
        DHD_ERROR(("%s: dhd_register_if failed\n", __FUNCTION__));
        dhd_remove_if(&dhd->pub, ifidx, TRUE);
        goto done;
    }
#endif /* WL_CFG80211 && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */

#ifndef PCIE_FULL_DONGLE
    /* Turn on AP isolation in the firmware for interfaces operating in AP mode
     */
    if (FW_SUPPORTED((&dhd->pub), ap) &&
        (if_event->event.role != WLC_E_IF_ROLE_STA)) {
        uint32 var_int = 1;
        ret = dhd_iovar(&dhd->pub, ifidx, "ap_isolate", (char *)&var_int,
                        sizeof(var_int), NULL, 0, TRUE);
        if (ret != BCME_OK) {
            DHD_ERROR(
                ("%s: Failed to set ap_isolate to dongle\n", __FUNCTION__));
            dhd_remove_if(&dhd->pub, ifidx, TRUE);
        }
    }
#endif /* PCIE_FULL_DONGLE */

done:
    MFREE(dhd->pub.osh, if_event, sizeof(dhd_if_event_t));
#if defined(WLDWDS) && defined(FOURADDR_AUTO_BRG)
    if (dhd->pub.info->iflist[ifidx]) {
        dhd_bridge_dev_set(dhd, ifidx, ndev);
    }
#endif /* defiend(WLDWDS) && defined(FOURADDR_AUTO_BRG) */

    DHD_PERIM_UNLOCK(&dhd->pub);
    DHD_OS_WAKE_UNLOCK(&dhd->pub);
    dhd_net_if_unlock_local(dhd);
}

static void dhd_ifdel_event_handler(void *handle, void *event_info, u8 event)
{
    dhd_info_t *dhd = handle;
    int ifidx;
    dhd_if_event_t *if_event = event_info;

    if (event != DHD_WQ_WORK_IF_DEL) {
        DHD_ERROR(("%s: unexpected event \n", __FUNCTION__));
        return;
    }

    if (!dhd) {
        DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
        return;
    }

    if (!if_event) {
        DHD_ERROR(("%s: event data is null \n", __FUNCTION__));
        return;
    }

    dhd_net_if_lock_local(dhd);
    DHD_OS_WAKE_LOCK(&dhd->pub);
    DHD_PERIM_LOCK(&dhd->pub);

    ifidx = if_event->event.ifidx;
    DHD_TRACE(("Removing interface with idx %d\n", ifidx));
#if defined(WLDWDS) && defined(FOURADDR_AUTO_BRG)
    if (dhd->pub.info->iflist[ifidx]) {
        dhd_bridge_dev_set(dhd, ifidx, NULL);
    }
#endif /* defiend(WLDWDS) && defined(FOURADDR_AUTO_BRG) */

    DHD_PERIM_UNLOCK(&dhd->pub);
    if (!dhd->pub.info->iflist[ifidx]) {
        /* No matching netdev found */
        DHD_ERROR(("Netdev not found! Do nothing.\n"));
        goto done;
    }
#if defined(WL_CFG80211) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
    if (if_event->event.ifidx > 0) {
        /* Do the post interface del ops */
        if (wl_cfg80211_post_ifdel(dhd->pub.info->iflist[ifidx]->net, true,
                                   if_event->event.ifidx) != 0) {
            DHD_TRACE(("Post ifdel ops failed. Returning \n"));
            goto done;
        }
    }
#else
    /* For non-cfg80211 drivers */
    dhd_remove_if(&dhd->pub, ifidx, TRUE);
#endif /* WL_CFG80211 && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */

done:
    DHD_PERIM_LOCK(&dhd->pub);
    MFREE(dhd->pub.osh, if_event, sizeof(dhd_if_event_t));
    DHD_PERIM_UNLOCK(&dhd->pub);
    DHD_OS_WAKE_UNLOCK(&dhd->pub);
    dhd_net_if_unlock_local(dhd);
}

#ifdef DHD_UPDATE_INTF_MAC
static void dhd_ifupdate_event_handler(void *handle, void *event_info, u8 event)
{
    dhd_info_t *dhd = handle;
    int ifidx;
    dhd_if_event_t *if_event = event_info;

    if (event != DHD_WQ_WORK_IF_UPDATE) {
        DHD_ERROR(("%s: unexpected event \n", __FUNCTION__));
        return;
    }

    if (!dhd) {
        DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
        return;
    }

    if (!if_event) {
        DHD_ERROR(("%s: event data is null \n", __FUNCTION__));
        return;
    }

    dhd_net_if_lock_local(dhd);
    DHD_OS_WAKE_LOCK(&dhd->pub);

    ifidx = if_event->event.ifidx;
    DHD_TRACE(("%s: Update interface with idx %d\n", __FUNCTION__, ifidx));

    dhd_op_if_update(&dhd->pub, ifidx);

    MFREE(dhd->pub.osh, if_event, sizeof(dhd_if_event_t));

    DHD_OS_WAKE_UNLOCK(&dhd->pub);
    dhd_net_if_unlock_local(dhd);
}

int dhd_op_if_update(dhd_pub_t *dhdpub, int ifidx)
{
    dhd_info_t *dhdinfo = NULL;
    dhd_if_t *ifp = NULL;
    int ret = 0;
    char buf[128];

    if ((dhdpub == NULL) || (dhdpub->info == NULL)) {
        DHD_ERROR(("%s: *** DHD handler is NULL!\n", __FUNCTION__));
        return -1;
    } else {
        dhdinfo = (dhd_info_t *)dhdpub->info;
        ifp = dhdinfo->iflist[ifidx];
        if (ifp == NULL) {
            DHD_ERROR(("%s: *** ifp handler is NULL!\n", __FUNCTION__));
            return -0x2;
        }
    }

    DHD_TRACE(("%s: idx %d\n", __FUNCTION__, ifidx));
    // Get MAC address
    strcpy(buf, "cur_etheraddr");
    ret = dhd_wl_ioctl_cmd(&dhdinfo->pub, WLC_GET_VAR, buf, sizeof(buf), FALSE,
                           ifp->idx);
    if (ret < 0) {
        DHD_ERROR(("Failed to upudate the MAC address for itf=%s, ret=%d\n",
                   ifp->name, ret));
        // avoid collision
        dhdinfo->iflist[ifp->idx]->mac_addr[0x5] += 1;
        // force locally administrate address
        ETHER_SET_LOCALADDR(&dhdinfo->iflist[ifp->idx]->mac_addr);
    } else {
        DHD_EVENT(
            ("Got mac for itf %s, idx %d, MAC=%02X:%02X:%02X:%02X:%02X:%02X\n",
             ifp->name, ifp->idx, (unsigned char)buf[0], (unsigned char)buf[1],
             (unsigned char)buf[0x2], (unsigned char)buf[0x3],
             (unsigned char)buf[0x4], (unsigned char)buf[0x5]));
        memcpy(dhdinfo->iflist[ifp->idx]->mac_addr, buf, ETHER_ADDR_LEN);
        if (dhdinfo->iflist[ifp->idx]->net) {
            memcpy(dhdinfo->iflist[ifp->idx]->net->dev_addr, buf,
                   ETHER_ADDR_LEN);
        }
    }

    return ret;
}
#endif /* DHD_UPDATE_INTF_MAC */

static void dhd_set_mac_addr_handler(void *handle, void *event_info, u8 event)
{
    dhd_info_t *dhd = handle;
    dhd_if_t *ifp = event_info;

    if (event != DHD_WQ_WORK_SET_MAC) {
        DHD_ERROR(("%s: unexpected event \n", __FUNCTION__));
    }

    if (!dhd) {
        DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
        return;
    }

    dhd_net_if_lock_local(dhd);
    DHD_OS_WAKE_LOCK(&dhd->pub);
    DHD_PERIM_LOCK(&dhd->pub);

    // terence 20160907: fix for not able to set mac when wlan0 is down
    if (ifp == NULL || !ifp->set_macaddress) {
        goto done;
    }
    if (ifp == NULL || !dhd->pub.up) {
        DHD_ERROR(("%s: interface info not available/down \n", __FUNCTION__));
        goto done;
    }

    ifp->set_macaddress = FALSE;

#ifdef DHD_NOTIFY_MAC_CHANGED
    rtnl_lock();
#endif /* DHD_NOTIFY_MAC_CHANGED */

    if (_dhd_set_mac_address(dhd, ifp->idx, ifp->mac_addr, TRUE) == 0) {
        DHD_INFO(("%s: MACID is overwritten\n", __FUNCTION__));
    } else {
        DHD_ERROR(("%s: _dhd_set_mac_address() failed\n", __FUNCTION__));
    }

#ifdef DHD_NOTIFY_MAC_CHANGED
    rtnl_unlock();
#endif /* DHD_NOTIFY_MAC_CHANGED */

done:
    DHD_PERIM_UNLOCK(&dhd->pub);
    DHD_OS_WAKE_UNLOCK(&dhd->pub);
    dhd_net_if_unlock_local(dhd);
}

static void dhd_set_mcast_list_handler(void *handle, void *event_info, u8 event)
{
    dhd_info_t *dhd = handle;
    int ifidx = (int)((long int)event_info);
    dhd_if_t *ifp = NULL;

    if (event != DHD_WQ_WORK_SET_MCAST_LIST) {
        DHD_ERROR(("%s: unexpected event \n", __FUNCTION__));
        return;
    }

    if (!dhd) {
        DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
        return;
    }

    dhd_net_if_lock_local(dhd);
    DHD_OS_WAKE_LOCK(&dhd->pub);
    DHD_PERIM_LOCK(&dhd->pub);

    ifp = dhd->iflist[ifidx];

    if (ifp == NULL || !dhd->pub.up) {
        DHD_ERROR(("%s: interface info not available/down \n", __FUNCTION__));
        goto done;
    }

    if (ifp == NULL || !dhd->pub.up) {
        DHD_ERROR(("%s: interface info not available/down \n", __FUNCTION__));
        goto done;
    }

    ifidx = ifp->idx;

#ifdef MCAST_LIST_ACCUMULATION
    ifidx = 0;
#endif /* MCAST_LIST_ACCUMULATION */

    _dhd_set_multicast_list(dhd, ifidx);
    DHD_INFO(("%s: set multicast list for if %d\n", __FUNCTION__, ifidx));

done:
    DHD_PERIM_UNLOCK(&dhd->pub);
    DHD_OS_WAKE_UNLOCK(&dhd->pub);
    dhd_net_if_unlock_local(dhd);
}

static int dhd_set_mac_address(struct net_device *dev, void *addr)
{
    int ret = 0;

    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    struct sockaddr *sa = (struct sockaddr *)addr;
    int ifidx;
    dhd_if_t *dhdif;

    ifidx = dhd_net2idx(dhd, dev);
    if (ifidx == DHD_BAD_IF) {
        return -1;
    }

    dhdif = dhd->iflist[ifidx];

    dhd_net_if_lock_local(dhd);
    memcpy(dhdif->mac_addr, sa->sa_data, ETHER_ADDR_LEN);
    dhdif->set_macaddress = TRUE;
    dhd_net_if_unlock_local(dhd);
    WL_MSG(dev->name, "macaddr = %pM\n", dhdif->mac_addr);
    dhd_deferred_schedule_work(dhd->dhd_deferred_wq, (void *)dhdif,
                               DHD_WQ_WORK_SET_MAC, dhd_set_mac_addr_handler,
                               DHD_WQ_WORK_PRIORITY_LOW);
    return ret;
}

static void dhd_set_multicast_list(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    int ifidx;

    ifidx = dhd_net2idx(dhd, dev);
    if (ifidx == DHD_BAD_IF) {
        return;
    }

    dhd->iflist[ifidx]->set_multicast = TRUE;
    dhd_deferred_schedule_work(dhd->dhd_deferred_wq, (void *)((long int)ifidx),
                               DHD_WQ_WORK_SET_MCAST_LIST,
                               dhd_set_mcast_list_handler,
                               DHD_WQ_WORK_PRIORITY_LOW);

    // terence 20160907: fix for not able to set mac when wlan0 is down
    dhd_deferred_schedule_work(dhd->dhd_deferred_wq, (void *)dhd->iflist[ifidx],
                               DHD_WQ_WORK_SET_MAC, dhd_set_mac_addr_handler,
                               DHD_WQ_WORK_PRIORITY_LOW);
}

#ifdef DHD_UCODE_DOWNLOAD
/* Get ucode path */
char *dhd_get_ucode_path(dhd_pub_t *dhdp)
{
    dhd_info_t *dhd = dhdp->info;
    return dhd->uc_path;
}
#endif /* DHD_UCODE_DOWNLOAD */

#ifdef PROP_TXSTATUS
int dhd_os_wlfc_block(dhd_pub_t *pub)
{
    dhd_info_t *di = (dhd_info_t *)(pub->info);
    ASSERT(di != NULL);
    /* terence 20161229: don't do spin lock if proptx not enabled */
    if (disable_proptx) {
        return 1;
    }
#ifdef BCMDBUS
    spin_lock_irqsave(&di->wlfc_spinlock, di->wlfc_lock_flags);
#else
    spin_lock_bh(&di->wlfc_spinlock);
#endif /* BCMDBUS */
    return 1;
}

int dhd_os_wlfc_unblock(dhd_pub_t *pub)
{
    dhd_info_t *di = (dhd_info_t *)(pub->info);

    ASSERT(di != NULL);
    /* terence 20161229: don't do spin lock if proptx not enabled */
    if (disable_proptx) {
        return 1;
    }
#ifdef BCMDBUS
    spin_unlock_irqrestore(&di->wlfc_spinlock, di->wlfc_lock_flags);
#else
    spin_unlock_bh(&di->wlfc_spinlock);
#endif /* BCMDBUS */
    return 1;
}

#endif /* PROP_TXSTATUS */

#if defined(WL_MONITOR) && defined(BCMSDIO)
static void dhd_rx_mon_pkt_sdio(dhd_pub_t *dhdp, void *pkt, int ifidx);
bool dhd_monitor_enabled(dhd_pub_t *dhd, int ifidx);
#endif /* WL_MONITOR && BCMSDIO */

/*  This routine do not support Packet chain feature, Currently tested for
 *  proxy arp feature
 */
int dhd_sendup(dhd_pub_t *dhdp, int ifidx, void *p)
{
    struct sk_buff *skb;
    void *skbhead = NULL;
    void *skbprev = NULL;
    dhd_if_t *ifp;
    ASSERT(!PKTISCHAINED(p));
    skb = PKTTONATIVE(dhdp->osh, p);

    ifp = dhdp->info->iflist[ifidx];
    skb->dev = ifp->net;

    skb->protocol = eth_type_trans(skb, skb->dev);

    if (in_interrupt()) {
        bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE, __FUNCTION__, __LINE__);
        netif_rx(skb);
    } else {
        if (dhdp->info->rxthread_enabled) {
            if (!skbhead) {
                skbhead = skb;
            } else {
                PKTSETNEXT(dhdp->osh, skbprev, skb);
            }
            skbprev = skb;
        } else {
            /* If the receive is not processed inside an ISR,
             * the softirqd must be woken explicitly to service
             * the NET_RX_SOFTIRQ.	In 2.6 kernels, this is handled
             * by netif_rx_ni(), but in earlier kernels, we need
             * to do it manually.
             */
            bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE, __FUNCTION__,
                                 __LINE__);
#if defined(WL_MONITOR) && defined(BCMSDIO)
            if (dhd_monitor_enabled(dhdp, ifidx)) {
                dhd_rx_mon_pkt_sdio(dhdp, skb, ifidx);
            } else
#endif /* WL_MONITOR && BCMSDIO */
                netif_rx_ni(skb);
        }
    }

    if (dhdp->info->rxthread_enabled && skbhead) {
        dhd_sched_rxf(dhdp, skbhead);
    }

    return BCME_OK;
}

int BCMFASTPATH __dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pktbuf)
{
    int ret = BCME_OK;
    dhd_info_t *dhd = (dhd_info_t *)(dhdp->info);
    struct ether_header *eh = NULL;
    bool pkt_ether_type_802_1x = FALSE;
    uint8 pkt_flow_prio;

#if defined(DHD_L2_FILTER)
    dhd_if_t *ifp = dhd_get_ifp(dhdp, ifidx);
#endif // endif

    /* Reject if down */
    if (!dhdp->up || (dhdp->busstate == DHD_BUS_DOWN)) {
        /* free the packet here since the caller won't */
        PKTCFREE(dhdp->osh, pktbuf, TRUE);
        return -ENODEV;
    }

#ifdef PCIE_FULL_DONGLE
    if (dhdp->busstate == DHD_BUS_SUSPEND) {
        DHD_ERROR(("%s : pcie is still in suspend state!!\n", __FUNCTION__));
        PKTCFREE(dhdp->osh, pktbuf, TRUE);
        return NETDEV_TX_BUSY;
    }
#endif /* PCIE_FULL_DONGLE */

    /* Reject if pktlen > MAX_MTU_SZ */
    if (PKTLEN(dhdp->osh, pktbuf) > MAX_MTU_SZ) {
        /* free the packet here since the caller won't */
        dhdp->tx_big_packets++;
        PKTCFREE(dhdp->osh, pktbuf, TRUE);
        return BCME_ERROR;
    }

#ifdef DHD_L2_FILTER
    /* if dhcp_unicast is enabled, we need to convert the */
    /* broadcast DHCP ACK/REPLY packets to Unicast. */
    if (ifp->dhcp_unicast) {
        uint8 *mac_addr;
        uint8 *ehptr = NULL;
        int ret;
        ret = bcm_l2_filter_get_mac_addr_dhcp_pkt(dhdp->osh, pktbuf, ifidx,
                                                  &mac_addr);
        if (ret == BCME_OK) {
            /*  if given mac address having valid entry in sta list
             *  copy the given mac address, and return with BCME_OK
             */
            if (dhd_find_sta(dhdp, ifidx, mac_addr)) {
                ehptr = PKTDATA(dhdp->osh, pktbuf);
                bcopy(mac_addr, ehptr + ETHER_DEST_OFFSET, ETHER_ADDR_LEN);
            }
        }
    }

    if (ifp->grat_arp && DHD_IF_ROLE_AP(dhdp, ifidx)) {
        if (bcm_l2_filter_gratuitous_arp(dhdp->osh, pktbuf) == BCME_OK) {
            PKTCFREE(dhdp->osh, pktbuf, TRUE);
            return BCME_ERROR;
        }
    }

    if (ifp->parp_enable && DHD_IF_ROLE_AP(dhdp, ifidx)) {
        ret = dhd_l2_filter_pkt_handle(dhdp, ifidx, pktbuf, TRUE);

        /* Drop the packets if l2 filter has processed it already
         * otherwise continue with the normal path
         */
        if (ret == BCME_OK) {
            PKTCFREE(dhdp->osh, pktbuf, TRUE);
            return BCME_ERROR;
        }
    }
#endif /* DHD_L2_FILTER */
    /* Update multicast statistic */
    if (PKTLEN(dhdp->osh, pktbuf) >= ETHER_HDR_LEN) {
        uint8 *pktdata = (uint8 *)PKTDATA(dhdp->osh, pktbuf);
        eh = (struct ether_header *)pktdata;

        if (ETHER_ISMULTI(eh->ether_dhost)) {
            dhdp->tx_multicast++;
        }
        if (ntoh16(eh->ether_type) == ETHER_TYPE_802_1X) {
#ifdef DHD_LOSSLESS_ROAMING
            uint8 prio = (uint8)PKTPRIO(pktbuf);

            /* back up 802.1x's priority */
            dhdp->prio_8021x = prio;
#endif /* DHD_LOSSLESS_ROAMING */
            pkt_ether_type_802_1x = TRUE;
            DBG_EVENT_LOG(dhdp,
                          WIFI_EVENT_DRIVER_EAPOL_FRAME_TRANSMIT_REQUESTED);
            atomic_inc(&dhd->pend_8021x_cnt);
#if defined(WL_CFG80211) && defined(WL_WPS_SYNC)
            wl_handle_wps_states(dhd_idx2net(dhdp, ifidx), pktdata,
                                 PKTLEN(dhdp->osh, pktbuf), TRUE);
#endif /* WL_CFG80211 && WL_WPS_SYNC */
        }
        dhd_dump_pkt(dhdp, ifidx, pktdata, (uint32)PKTLEN(dhdp->osh, pktbuf),
                     TRUE, NULL, NULL);
    } else {
        PKTCFREE(dhdp->osh, pktbuf, TRUE);
        return BCME_ERROR;
    }

    {
        /* Look into the packet and update the packet priority */
#ifndef PKTPRIO_OVERRIDE
        if (PKTPRIO(pktbuf) == 0)
#endif /* !PKTPRIO_OVERRIDE */
        {
#if defined(QOS_MAP_SET)
            pktsetprio_qms(pktbuf, wl_get_up_table(dhdp, ifidx), FALSE);
#else
            pktsetprio(pktbuf, FALSE);
#endif /* QOS_MAP_SET */
        }
#ifndef PKTPRIO_OVERRIDE
        else {
            /* Some protocols like OZMO use priority values from 256..263.
             * these are magic values to indicate a specific 802.1d priority.
             * make sure that priority field is in range of 0..7
             */
            PKTSETPRIO(pktbuf, PKTPRIO(pktbuf) & 0x7);
        }
#endif /* !PKTPRIO_OVERRIDE */
    }

    BCM_REFERENCE(pkt_ether_type_802_1x);
    BCM_REFERENCE(pkt_flow_prio);

#ifdef SUPPORT_SET_TID
    dhd_set_tid_based_on_uid(dhdp, pktbuf);
#endif /* SUPPORT_SET_TID */

#ifdef PCIE_FULL_DONGLE
    /*
     * Lkup the per interface hash table, for a matching flowring. If one is not
     * available, allocate a unique flowid and add a flowring entry.
     * The found or newly created flowid is placed into the pktbuf's tag.
     */

#ifdef DHD_LOSSLESS_ROAMING
    /* For LLR override and use flowring with prio 7 for 802.1x packets */
    if (pkt_ether_type_802_1x) {
        pkt_flow_prio = PRIO_8021D_NC;
    } else
#endif /* DHD_LOSSLESS_ROAMING */
    {
        pkt_flow_prio = dhdp->flow_prio_map[(PKTPRIO(pktbuf))];
    }

    ret = dhd_flowid_update(dhdp, ifidx, pkt_flow_prio, pktbuf);
    if (ret != BCME_OK) {
        PKTCFREE(dhd->pub.osh, pktbuf, TRUE);
        return ret;
    }
#endif /* PCIE_FULL_DONGLE */
    /* terence 20150901: Micky add to ajust the 802.1X priority */
    /* Set the 802.1X packet with the highest priority 7 */
    if (dhdp->conf->pktprio8021x >= 0) {
        pktset8021xprio(pktbuf, dhdp->conf->pktprio8021x);
    }

#ifdef PROP_TXSTATUS
    if (dhd_wlfc_is_supported(dhdp)) {
        /* store the interface ID */
        DHD_PKTTAG_SETIF(PKTTAG(pktbuf), ifidx);

        /* store destination MAC in the tag as well */
        DHD_PKTTAG_SETDSTN(PKTTAG(pktbuf), eh->ether_dhost);

        /* decide which FIFO this packet belongs to */
        if (ETHER_ISMULTI(eh->ether_dhost)) {
            /* one additional queue index (highest AC + 1) is used for bc/mc
             * queue */
            DHD_PKTTAG_SETFIFO(PKTTAG(pktbuf), AC_COUNT);
        } else {
            DHD_PKTTAG_SETFIFO(PKTTAG(pktbuf), WME_PRIO2AC(PKTPRIO(pktbuf)));
        }
    } else
#endif /* PROP_TXSTATUS */
    {
        /* If the protocol uses a data header, apply it */
        dhd_prot_hdrpush(dhdp, ifidx, pktbuf);
    }

    /* Use bus module to send data frame */
#ifdef PROP_TXSTATUS
    {
        if (dhd_wlfc_commit_packets(dhdp, (f_commitpkt_t)dhd_bus_txdata,
                                    dhdp->bus, pktbuf,
                                    TRUE) == WLFC_UNSUPPORTED) {
            /* non-proptxstatus way */
#ifdef BCMPCIE
            ret = dhd_bus_txdata(dhdp->bus, pktbuf, (uint8)ifidx);
#else
            ret = dhd_bus_txdata(dhdp->bus, pktbuf);
#endif /* BCMPCIE */
        }
    }
#else
#ifdef BCMPCIE
    ret = dhd_bus_txdata(dhdp->bus, pktbuf, (uint8)ifidx);
#else
    ret = dhd_bus_txdata(dhdp->bus, pktbuf);
#endif /* BCMPCIE */
#endif /* PROP_TXSTATUS */
#ifdef BCMDBUS
    if (ret) {
        PKTCFREE(dhdp->osh, pktbuf, TRUE);
    }
#endif /* BCMDBUS */

    return ret;
}

int BCMFASTPATH dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pktbuf)
{
    int ret = 0;
    unsigned long flags;
    dhd_if_t *ifp;

    DHD_GENERAL_LOCK(dhdp, flags);
    ifp = dhd_get_ifp(dhdp, ifidx);
    if (!ifp || ifp->del_in_progress) {
        DHD_ERROR(("%s: ifp:%p del_in_progress:%d\n", __FUNCTION__, ifp,
                   ifp ? ifp->del_in_progress : 0));
        DHD_GENERAL_UNLOCK(dhdp, flags);
        PKTCFREE(dhdp->osh, pktbuf, TRUE);
        return -ENODEV;
    }
    if (DHD_BUS_CHECK_DOWN_OR_DOWN_IN_PROGRESS(dhdp)) {
        DHD_ERROR(
            ("%s: returning as busstate=%d\n", __FUNCTION__, dhdp->busstate));
        DHD_GENERAL_UNLOCK(dhdp, flags);
        PKTCFREE(dhdp->osh, pktbuf, TRUE);
        return -ENODEV;
    }
    DHD_IF_SET_TX_ACTIVE(ifp, DHD_TX_SEND_PKT);
    DHD_BUS_BUSY_SET_IN_SEND_PKT(dhdp);
    DHD_GENERAL_UNLOCK(dhdp, flags);

    DHD_GENERAL_LOCK(dhdp, flags);
    if (DHD_BUS_CHECK_SUSPEND_OR_SUSPEND_IN_PROGRESS(dhdp)) {
        DHD_ERROR(("%s: bus is in suspend(%d) or suspending(0x%x) state!!\n",
                   __FUNCTION__, dhdp->busstate, dhdp->dhd_bus_busy_state));
        DHD_BUS_BUSY_CLEAR_IN_SEND_PKT(dhdp);
        DHD_IF_CLR_TX_ACTIVE(ifp, DHD_TX_SEND_PKT);
        dhd_os_tx_completion_wake(dhdp);
        dhd_os_busbusy_wake(dhdp);
        DHD_GENERAL_UNLOCK(dhdp, flags);
        PKTCFREE(dhdp->osh, pktbuf, TRUE);
        return -ENODEV;
    }
    DHD_GENERAL_UNLOCK(dhdp, flags);

    ret = __dhd_sendpkt(dhdp, ifidx, pktbuf);

    DHD_GENERAL_LOCK(dhdp, flags);
    DHD_BUS_BUSY_CLEAR_IN_SEND_PKT(dhdp);
    DHD_IF_CLR_TX_ACTIVE(ifp, DHD_TX_SEND_PKT);
    dhd_os_tx_completion_wake(dhdp);
    dhd_os_busbusy_wake(dhdp);
    DHD_GENERAL_UNLOCK(dhdp, flags);
    return ret;
}

netdev_tx_t BCMFASTPATH dhd_start_xmit(struct sk_buff *skb,
                                       struct net_device *net)
{
    int ret;
    uint datalen;
    void *pktbuf;
    dhd_info_t *dhd = DHD_DEV_INFO(net);
    dhd_if_t *ifp = NULL;
    int ifidx;
    unsigned long flags;
    uint8 htsfdlystat_sz = 0;

    DHD_TRACE(("%s: Enter\n", __FUNCTION__));

    if (dhd_query_bus_erros(&dhd->pub)) {
        return -ENODEV;
    }

    DHD_GENERAL_LOCK(&dhd->pub, flags);
    DHD_BUS_BUSY_SET_IN_TX(&dhd->pub);
    DHD_GENERAL_UNLOCK(&dhd->pub, flags);

    DHD_GENERAL_LOCK(&dhd->pub, flags);
#ifdef BCMPCIE
    if (DHD_BUS_CHECK_SUSPEND_OR_SUSPEND_IN_PROGRESS(&dhd->pub)) {
        DHD_ERROR(("%s: bus is in suspend(%d) or suspending(0x%x) state!!\n",
                   __FUNCTION__, dhd->pub.busstate,
                   dhd->pub.dhd_bus_busy_state));
        DHD_BUS_BUSY_CLEAR_IN_TX(&dhd->pub);
#ifdef PCIE_FULL_DONGLE
        /* Stop tx queues if suspend is in progress */
        if (DHD_BUS_CHECK_ANY_SUSPEND_IN_PROGRESS(&dhd->pub)) {
            dhd_bus_stop_queue(dhd->pub.bus);
        }
#endif /* PCIE_FULL_DONGLE */
        dhd_os_busbusy_wake(&dhd->pub);
        DHD_GENERAL_UNLOCK(&dhd->pub, flags);
        return NETDEV_TX_BUSY;
    }
#else
    if (DHD_BUS_CHECK_SUSPEND_OR_SUSPEND_IN_PROGRESS(&dhd->pub)) {
        DHD_ERROR(("%s: bus is in suspend(%d) or suspending(0x%x) state!!\n",
                   __FUNCTION__, dhd->pub.busstate,
                   dhd->pub.dhd_bus_busy_state));
    }
#endif

    DHD_OS_WAKE_LOCK(&dhd->pub);
    DHD_PERIM_LOCK_TRY(DHD_FWDER_UNIT(dhd), lock_taken);

    /* Reject if down */
    if (dhd->pub.hang_was_sent ||
        DHD_BUS_CHECK_DOWN_OR_DOWN_IN_PROGRESS(&dhd->pub)) {
        DHD_ERROR(("%s: xmit rejected pub.up=%d busstate=%d \n", __FUNCTION__,
                   dhd->pub.up, dhd->pub.busstate));
        netif_stop_queue(net);
        /* Send Event when bus down detected during data session */
        if (dhd->pub.up && !dhd->pub.hang_was_sent &&
            !DHD_BUS_CHECK_REMOVE(&dhd->pub)) {
            DHD_ERROR(("%s: Event HANG sent up\n", __FUNCTION__));
            dhd->pub.hang_reason = HANG_REASON_BUS_DOWN;
            net_os_send_hang_message(net);
        }
        DHD_BUS_BUSY_CLEAR_IN_TX(&dhd->pub);
        dhd_os_busbusy_wake(&dhd->pub);
        DHD_GENERAL_UNLOCK(&dhd->pub, flags);
        DHD_PERIM_UNLOCK_TRY(DHD_FWDER_UNIT(dhd), lock_taken);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        return NETDEV_TX_BUSY;
    }

    ifp = DHD_DEV_IFP(net);
    ifidx = DHD_DEV_IFIDX(net);
    if (!ifp || (ifidx == DHD_BAD_IF) || ifp->del_in_progress) {
        DHD_ERROR(("%s: ifidx %d ifp:%p del_in_progress:%d\n", __FUNCTION__,
                   ifidx, ifp, (ifp ? ifp->del_in_progress : 0)));
        netif_stop_queue(net);
        DHD_BUS_BUSY_CLEAR_IN_TX(&dhd->pub);
        dhd_os_busbusy_wake(&dhd->pub);
        DHD_GENERAL_UNLOCK(&dhd->pub, flags);
        DHD_PERIM_UNLOCK_TRY(DHD_FWDER_UNIT(dhd), lock_taken);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        return NETDEV_TX_BUSY;
    }

    DHD_IF_SET_TX_ACTIVE(ifp, DHD_TX_START_XMIT);
    DHD_GENERAL_UNLOCK(&dhd->pub, flags);

    ASSERT(ifidx == dhd_net2idx(dhd, net));
    ASSERT((ifp != NULL) &&
           ((ifidx < DHD_MAX_IFS) && (ifp == dhd->iflist[ifidx])));

    bcm_object_trace_opr(skb, BCM_OBJDBG_ADD_PKT, __FUNCTION__, __LINE__);

    /* re-align socket buffer if "skb->data" is odd address */
    if (((unsigned long)(skb->data)) & 0x1) {
        unsigned char *data = skb->data;
        uint32 length = skb->len;
        PKTPUSH(dhd->pub.osh, skb, 1);
        memmove(skb->data, data, length);
        PKTSETLEN(dhd->pub.osh, skb, length);
    }

    datalen = PKTLEN(dhd->pub.osh, skb);

#ifdef TPUT_MONITOR
    if (dhd->pub.conf->tput_monitor_ms) {
        dhd_os_sdlock_txq(&dhd->pub);
        dhd->pub.conf->net_len += datalen;
        dhd_os_sdunlock_txq(&dhd->pub);
        if ((dhd->pub.conf->data_drop_mode == XMIT_DROP) &&
            (PKTLEN(dhd->pub.osh, skb) > 0x1F4)) {
            dev_kfree_skb(skb);
            return NETDEV_TX_OK;
        }
    }
#endif
    /* Make sure there's enough room for any header */
    if (skb_headroom(skb) < dhd->pub.hdrlen + htsfdlystat_sz) {
        struct sk_buff *skb2;

        DHD_INFO(("%s: insufficient headroom\n", dhd_ifname(&dhd->pub, ifidx)));
        dhd->pub.tx_realloc++;

        bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE, __FUNCTION__, __LINE__);
        skb2 = skb_realloc_headroom(skb, dhd->pub.hdrlen + htsfdlystat_sz);

        dev_kfree_skb(skb);
        if ((skb = skb2) == NULL) {
            DHD_ERROR(("%s: skb_realloc_headroom failed\n",
                       dhd_ifname(&dhd->pub, ifidx)));
            ret = -ENOMEM;
            goto done;
        }
        bcm_object_trace_opr(skb, BCM_OBJDBG_ADD_PKT, __FUNCTION__, __LINE__);
    }

    /* move from dhdsdio_sendfromq(), try to orphan skb early */
    if (dhd->pub.conf->orphan_move == 0x2) {
        PKTORPHAN(skb, dhd->pub.conf->tsq);
    } else if (dhd->pub.conf->orphan_move == 0x3) {
        skb_orphan(skb);
    }

    /* Convert to packet */
    if (!(pktbuf = PKTFRMNATIVE(dhd->pub.osh, skb))) {
        DHD_ERROR(("%s: PKTFRMNATIVE failed\n", dhd_ifname(&dhd->pub, ifidx)));
        bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE, __FUNCTION__, __LINE__);
        dev_kfree_skb_any(skb);
        ret = -ENOMEM;
        goto done;
    }

#ifdef DHD_WET
    /* wet related packet proto manipulation should be done in DHD
       since dongle doesn't have complete payload
     */
    if (WET_ENABLED(&dhd->pub) &&
        (dhd_wet_send_proc(dhd->pub.wet_info, pktbuf, &pktbuf) < 0)) {
        DHD_INFO(("%s:%s: wet send proc failed\n", __FUNCTION__,
                  dhd_ifname(&dhd->pub, ifidx)));
        PKTFREE(dhd->pub.osh, pktbuf, FALSE);
        ret = -EFAULT;
        goto done;
    }
#endif /* DHD_WET */

#ifdef DHD_PSTA
    /* PSR related packet proto manipulation should be done in DHD
     * since dongle doesn't have complete payload
     */
    if (PSR_ENABLED(&dhd->pub) &&
        (dhd_psta_proc(&dhd->pub, ifidx, &pktbuf, TRUE) < 0)) {
        DHD_ERROR(("%s:%s: psta send proc failed\n", __FUNCTION__,
                   dhd_ifname(&dhd->pub, ifidx)));
    }
#endif /* DHD_PSTA */

#ifdef DHDTCPSYNC_FLOOD_BLK
    if (dhd_tcpdata_get_flag(&dhd->pub, pktbuf) == FLAG_SYNCACK) {
        ifp->tsyncack_txed++;
    }
#endif /* DHDTCPSYNC_FLOOD_BLK */

#ifdef DHDTCPACK_SUPPRESS
    if (dhd->pub.tcpack_sup_mode == TCPACK_SUP_HOLD) {
        /* If this packet has been hold or got freed, just return */
        if (dhd_tcpack_hold(&dhd->pub, pktbuf, ifidx)) {
            ret = 0;
            goto done;
        }
    } else {
        /* If this packet has replaced another packet and got freed, just return
         */
        if (dhd_tcpack_suppress(&dhd->pub, pktbuf)) {
            ret = 0;
            goto done;
        }
    }
#endif /* DHDTCPACK_SUPPRESS */

    /*
     * If Load Balance is enabled queue the packet
     * else send directly from here.
     */
#if defined(DHD_LB_TXP)
    ret = dhd_lb_sendpkt(dhd, net, ifidx, pktbuf);
#else
    ret = __dhd_sendpkt(&dhd->pub, ifidx, pktbuf);
#endif // endif

done:
    if (ret) {
        ifp->stats.tx_dropped++;
        dhd->pub.tx_dropped++;
    } else {
#ifdef PROP_TXSTATUS
        /* tx_packets counter can counted only when wlfc is disabled */
        if (!dhd_wlfc_is_supported(&dhd->pub))
#endif // endif
        {
            dhd->pub.tx_packets++;
            ifp->stats.tx_packets++;
            ifp->stats.tx_bytes += datalen;
        }
    }

    DHD_GENERAL_LOCK(&dhd->pub, flags);
    DHD_BUS_BUSY_CLEAR_IN_TX(&dhd->pub);
    DHD_IF_CLR_TX_ACTIVE(ifp, DHD_TX_START_XMIT);
    dhd_os_tx_completion_wake(&dhd->pub);
    dhd_os_busbusy_wake(&dhd->pub);
    DHD_GENERAL_UNLOCK(&dhd->pub, flags);
    DHD_PERIM_UNLOCK_TRY(DHD_FWDER_UNIT(dhd), lock_taken);
    DHD_OS_WAKE_UNLOCK(&dhd->pub);
    /* Return ok: we always eat the packet */
    return NETDEV_TX_OK;
}

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
void dhd_rx_wq_wakeup(struct work_struct *ptr)
{
    struct dhd_rx_tx_work *work;
    struct dhd_pub *pub;

    work = container_of(ptr, struct dhd_rx_tx_work, work);

    pub = work->pub;

    DHD_RPM(("%s: ENTER. \n", __FUNCTION__));

    if (atomic_read(&pub->block_bus) || pub->busstate == DHD_BUS_DOWN) {
        return;
    }

    DHD_OS_WAKE_LOCK(pub);
    if (pm_runtime_get_sync(dhd_bus_to_dev(pub->bus)) >= 0) {
        // do nothing but wakeup the bus.
        pm_runtime_mark_last_busy(dhd_bus_to_dev(pub->bus));
        pm_runtime_put_autosuspend(dhd_bus_to_dev(pub->bus));
    }
    DHD_OS_WAKE_UNLOCK(pub);
    kfree(work);
}

void dhd_start_xmit_wq_adapter(struct work_struct *ptr)
{
    struct dhd_rx_tx_work *work;
    netdev_tx_t ret;
    dhd_info_t *dhd;
    struct dhd_bus *bus;

    work = container_of(ptr, struct dhd_rx_tx_work, work);

    dhd = DHD_DEV_INFO(work->net);

    bus = dhd->pub.bus;

    if (atomic_read(&dhd->pub.block_bus)) {
        kfree_skb(work->skb);
        kfree(work);
        dhd_netif_start_queue(bus);
        return;
    }

    if (pm_runtime_get_sync(dhd_bus_to_dev(bus)) >= 0) {
        ret = dhd_start_xmit(work->skb, work->net);
        pm_runtime_mark_last_busy(dhd_bus_to_dev(bus));
        pm_runtime_put_autosuspend(dhd_bus_to_dev(bus));
    }
    kfree(work);
    dhd_netif_start_queue(bus);

    if (ret) {
        netdev_err(work->net, "error: dhd_start_xmit():%d\n", ret);
    }
}

netdev_tx_t BCMFASTPATH dhd_start_xmit_wrapper(struct sk_buff *skb,
                                               struct net_device *net)
{
    struct dhd_rx_tx_work *start_xmit_work;
    netdev_tx_t ret;
    dhd_info_t *dhd = DHD_DEV_INFO(net);

    if (dhd->pub.busstate == DHD_BUS_SUSPEND) {
        DHD_RPM(("%s: wakeup the bus using workqueue.\n", __FUNCTION__));

        dhd_netif_stop_queue(dhd->pub.bus);

        start_xmit_work = (struct dhd_rx_tx_work *)kmalloc(
            sizeof(*start_xmit_work), GFP_ATOMIC);
        if (!start_xmit_work) {
            netdev_err(net, "error: failed to alloc start_xmit_work\n");
            ret = -ENOMEM;
            goto exit;
        }

        INIT_WORK(&start_xmit_work->work, dhd_start_xmit_wq_adapter);
        start_xmit_work->skb = skb;
        start_xmit_work->net = net;
        queue_work(dhd->tx_wq, &start_xmit_work->work);
        ret = NET_XMIT_SUCCESS;
    } else if (dhd->pub.busstate == DHD_BUS_DATA) {
        ret = dhd_start_xmit(skb, net);
    } else {
        /* when bus is down */
        ret = -ENODEV;
    }

exit:
    return ret;
}
void dhd_bus_wakeup_work(dhd_pub_t *dhdp)
{
    struct dhd_rx_tx_work *rx_work;
    dhd_info_t *dhd = (dhd_info_t *)dhdp->info;

    rx_work = kmalloc(sizeof(*rx_work), GFP_ATOMIC);
    if (!rx_work) {
        DHD_ERROR(("%s: start_rx_work alloc error. \n", __FUNCTION__));
        return;
    }

    INIT_WORK(&rx_work->work, dhd_rx_wq_wakeup);
    rx_work->pub = dhdp;
    queue_work(dhd->rx_wq, &rx_work->work);
}
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

static void __dhd_txflowcontrol(dhd_pub_t *dhdp, struct net_device *net,
                                bool state)
{
    if ((state == ON) && (dhdp->txoff == FALSE)) {
        netif_stop_queue(net);
        dhd_prot_update_pktid_txq_stop_cnt(dhdp);
    } else if (state == ON) {
        DHD_INFO(("%s: Netif Queue has already stopped\n", __FUNCTION__));
    }
    if ((state == OFF) && (dhdp->txoff == TRUE)) {
        netif_wake_queue(net);
        dhd_prot_update_pktid_txq_start_cnt(dhdp);
    } else if (state == OFF) {
        DHD_INFO(("%s: Netif Queue has already started\n", __FUNCTION__));
    }
}

void dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool state)
{
    struct net_device *net;
    dhd_info_t *dhd = dhdp->info;
    unsigned long flags;
    int i;

    DHD_TRACE(("%s: Enter\n", __FUNCTION__));

    ASSERT(dhd);

#ifdef DHD_LOSSLESS_ROAMING
    /* block flowcontrol during roaming */
    if ((dhdp->dequeue_prec_map == 1 << PRIO_8021D_NC) && state == ON) {
        return;
    }
#endif // endif

    flags = dhd_os_sdlock_txoff(&dhd->pub);
    if (ifidx == ALL_INTERFACES) {
        for (i = 0; i < DHD_MAX_IFS; i++) {
            if (dhd->iflist[i]) {
                net = dhd->iflist[i]->net;
                __dhd_txflowcontrol(dhdp, net, state);
            }
        }
    } else {
        if (dhd->iflist[ifidx]) {
            net = dhd->iflist[ifidx]->net;
            __dhd_txflowcontrol(dhdp, net, state);
        }
    }
    dhdp->txoff = state;
    dhd_os_sdunlock_txoff(&dhd->pub, flags);
}

#ifdef DHD_MCAST_REGEN
/*
 * Description: This function is called to do the reverse translation
 *
 * Input    eh - pointer to the ethernet header
 */
int32 dhd_mcast_reverse_translation(struct ether_header *eh)
{
    uint8 *iph;
    uint32 dest_ip;

    iph = (uint8 *)eh + ETHER_HDR_LEN;
    dest_ip = ntoh32(*((uint32 *)(iph + IPV4_DEST_IP_OFFSET)));

    /* Only IP packets are handled */
    if (eh->ether_type != hton16(ETHER_TYPE_IP)) {
        return BCME_ERROR;
    }

    /* Non-IPv4 multicast packets are not handled */
    if (IP_VER(iph) != IP_VER_4) {
        return BCME_ERROR;
    }

    /*
     * The packet has a multicast IP and unicast MAC. That means
     * we have to do the reverse translation
     */
    if (IPV4_ISMULTI(dest_ip) && !ETHER_ISMULTI(&eh->ether_dhost)) {
        ETHER_FILL_MCAST_ADDR_FROM_IP(eh->ether_dhost, dest_ip);
        return BCME_OK;
    }

    return BCME_ERROR;
}
#endif /* MCAST_REGEN */

#ifdef SHOW_LOGTRACE
static void dhd_netif_rx_ni(struct sk_buff *skb)
{
    /* Do not call netif_recieve_skb as this workqueue scheduler is
     * not from NAPI Also as we are not in INTR context, do not call
     * netif_rx, instead call netif_rx_ni (for kerenl >= 2.6) which
     * does netif_rx, disables irq, raise NET_IF_RX softirq and
     * enables interrupts back
     */
    netif_rx_ni(skb);
}

static int dhd_event_logtrace_pkt_process(dhd_pub_t *dhdp, struct sk_buff *skb)
{
    dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
    int ret = BCME_OK;
    uint datalen;
    bcm_event_msg_u_t evu;
    void *data = NULL;
    void *pktdata = NULL;
    bcm_event_t *pvt_data;
    uint pktlen;

    DHD_TRACE(("%s:Enter\n", __FUNCTION__));

    /* In dhd_rx_frame, header is stripped using skb_pull
     * of size ETH_HLEN, so adjust pktlen accordingly
     */
    pktlen = skb->len + ETH_HLEN;

    pktdata = (void *)skb_mac_header(skb);
    ret = wl_host_event_get_data(pktdata, pktlen, &evu);
    if (ret != BCME_OK) {
        DHD_ERROR(("%s: wl_host_event_get_data err = %d\n", __FUNCTION__, ret));
        goto exit;
    }
    datalen = ntoh32(evu.event.datalen);

    pvt_data = (bcm_event_t *)pktdata;
    data = &pvt_data[1];

    dhd_dbg_trace_evnt_handler(dhdp, data, &dhd->event_data, datalen);

exit:
    return ret;
}

/*
 * dhd_event_logtrace_process_items processes
 * each skb from evt_trace_queue.
 * Returns TRUE if more packets to be processed
 * else returns FALSE
 */

static int dhd_event_logtrace_process_items(dhd_info_t *dhd)
{
    dhd_pub_t *dhdp;
    struct sk_buff *skb;
    uint32 qlen;
    uint32 process_len;

    if (!dhd) {
        DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
        return 0;
    }

    dhdp = &dhd->pub;

    if (!dhdp) {
        DHD_ERROR(("%s: dhd pub is null \n", __FUNCTION__));
        return 0;
    }

    qlen = skb_queue_len(&dhd->evt_trace_queue);
    process_len = MIN(qlen, DHD_EVENT_LOGTRACE_BOUND);

    /* Run while loop till bound is reached or skb queue is empty */
    while (process_len--) {
        int ifid = 0;
        skb = skb_dequeue(&dhd->evt_trace_queue);
        if (skb == NULL) {
            DHD_ERROR(
                ("%s: skb is NULL, which is not valid case\n", __FUNCTION__));
            break;
        }
        BCM_REFERENCE(ifid);
#ifdef PCIE_FULL_DONGLE
        /* Check if pkt is from INFO ring or WLC_E_TRACE */
        ifid = DHD_PKTTAG_IFID((dhd_pkttag_fr_t *)PKTTAG(skb));
        if (ifid == DHD_DUMMY_INFO_IF) {
            /* Process logtrace from info rings */
            dhd_event_logtrace_infobuf_pkt_process(dhdp, skb, &dhd->event_data);
        } else
#endif /* PCIE_FULL_DONGLE */
        {
            /* Processing WLC_E_TRACE case OR non PCIE PCIE_FULL_DONGLE case */
            dhd_event_logtrace_pkt_process(dhdp, skb);
        }

        /* Dummy sleep so that scheduler kicks in after processing any logprints
         */
        OSL_SLEEP(0);

        /* Send packet up if logtrace_pkt_sendup is TRUE */
        if (dhdp->logtrace_pkt_sendup) {
#ifdef DHD_USE_STATIC_CTRLBUF
            /* If bufs are allocated via static buf pool
             * and logtrace_pkt_sendup enabled, make a copy,
             * free the local one and send the copy up.
             */
            void *npkt = PKTDUP(dhdp->osh, skb);
            /* Clone event and send it up */
            PKTFREE_STATIC(dhdp->osh, skb, FALSE);
            if (npkt) {
                skb = npkt;
            } else {
                DHD_ERROR(("skb clone failed. dropping logtrace pkt.\n"));
                /* Packet is already freed, go to next packet */
                continue;
            }
#endif /* DHD_USE_STATIC_CTRLBUF */
#ifdef PCIE_FULL_DONGLE
            /* For infobuf packets as if is DHD_DUMMY_INFO_IF,
             * to send skb to network layer, assign skb->dev with
             * Primary interface n/w device
             */
            if (ifid == DHD_DUMMY_INFO_IF) {
                skb = PKTTONATIVE(dhdp->osh, skb);
                skb->dev = dhd->iflist[0]->net;
            }
#endif /* PCIE_FULL_DONGLE */
            /* Send pkt UP */
            dhd_netif_rx_ni(skb);
        } else {
            /* Don't send up. Free up the packet. */
#ifdef DHD_USE_STATIC_CTRLBUF
            PKTFREE_STATIC(dhdp->osh, skb, FALSE);
#else
            PKTFREE(dhdp->osh, skb, FALSE);
#endif /* DHD_USE_STATIC_CTRLBUF */
        }
    }

    /* Reschedule if more packets to be processed */
    return (qlen >= DHD_EVENT_LOGTRACE_BOUND);
}

#ifdef DHD_USE_KTHREAD_FOR_LOGTRACE
static int dhd_logtrace_thread(void *data)
{
    tsk_ctl_t *tsk = (tsk_ctl_t *)data;
    dhd_info_t *dhd = (dhd_info_t *)tsk->parent;
    dhd_pub_t *dhdp = (dhd_pub_t *)&dhd->pub;
    int ret;

    while (1) {
        dhdp->logtrace_thr_ts.entry_time = OSL_LOCALTIME_NS();
        if (!binary_sema_down(tsk)) {
            dhdp->logtrace_thr_ts.sem_down_time = OSL_LOCALTIME_NS();
            SMP_RD_BARRIER_DEPENDS();
            if (dhd->pub.dongle_reset == FALSE) {
                do {
                    /* Check terminated before processing the items */
                    if (tsk->terminated) {
                        DHD_ERROR(("%s: task terminated\n", __FUNCTION__));
                        goto exit;
                    }
#ifdef EWP_EDL
                    /* check if EDL is being used */
                    if (dhd->pub.dongle_edl_support) {
                        ret = dhd_prot_process_edl_complete(&dhd->pub,
                                                            &dhd->event_data);
                    } else {
                        ret = dhd_event_logtrace_process_items(dhd);
                    }
#else
                    ret = dhd_event_logtrace_process_items(dhd);
#endif /* EWP_EDL */
                    /* if ret > 0, bound has reached so to be fair to other
                     * processes need to yield the scheduler.
                     * The comment above yield()'s definition says:
                     * If you want to use yield() to wait for something,
                     * use wait_event().
                     * If you want to use yield() to be 'nice' for others,
                     * use cond_resched().
                     * If you still want to use yield(), do not!
                     */
                    if (ret > 0) {
                        cond_resched();
                        OSL_SLEEP(DHD_EVENT_LOGTRACE_RESCHEDULE_DELAY_MS);
                    } else if (ret < 0) {
                        DHD_ERROR(("%s: ERROR should not reach here\n",
                                   __FUNCTION__));
                    }
                } while (ret > 0);
            }
            if (tsk->flush_ind) {
                DHD_ERROR(("%s: flushed\n", __FUNCTION__));
                dhdp->logtrace_thr_ts.flush_time = OSL_LOCALTIME_NS();
                tsk->flush_ind = 0;
                complete(&tsk->flushed);
            }
        } else {
            DHD_ERROR(("%s: unexpted break\n", __FUNCTION__));
            dhdp->logtrace_thr_ts.unexpected_break_time = OSL_LOCALTIME_NS();
            break;
        }
    }
exit:
    complete_and_exit(&tsk->completed, 0);
    dhdp->logtrace_thr_ts.complete_time = OSL_LOCALTIME_NS();
}
#else
static void dhd_event_logtrace_process(struct work_struct *work)
{
    int ret = 0;
/* Ignore compiler warnings due to -Werror=cast-qual */
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
    struct delayed_work *dw = to_delayed_work(work);
    struct dhd_info *dhd =
        container_of(dw, struct dhd_info, event_log_dispatcher_work);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
#ifdef EWP_EDL
    if (dhd->pub.dongle_edl_support) {
        ret = dhd_prot_process_edl_complete(&dhd->pub, &dhd->event_data);
    } else {
        ret = dhd_event_logtrace_process_items(dhd);
    }
#else
    ret = dhd_event_logtrace_process_items(dhd);
#endif /* EWP_EDL */
    if (ret > 0) {
        schedule_delayed_work(
            &(dhd)->event_log_dispatcher_work,
            msecs_to_jiffies(DHD_EVENT_LOGTRACE_RESCHEDULE_DELAY_MS));
    }
    return;
}
#endif /* DHD_USE_KTHREAD_FOR_LOGTRACE */

void dhd_schedule_logtrace(void *dhd_info)
{
    dhd_info_t *dhd = (dhd_info_t *)dhd_info;

#ifdef DHD_USE_KTHREAD_FOR_LOGTRACE
    if (dhd->thr_logtrace_ctl.thr_pid >= 0) {
        binary_sema_up(&dhd->thr_logtrace_ctl);
    } else {
        DHD_ERROR(("%s: thr_logtrace_ctl(%ld) not inited\n", __FUNCTION__,
                   dhd->thr_logtrace_ctl.thr_pid));
    }
#else
    schedule_delayed_work(&dhd->event_log_dispatcher_work, 0);
#endif /* DHD_USE_KTHREAD_FOR_LOGTRACE */
    return;
}

void dhd_cancel_logtrace_process_sync(dhd_info_t *dhd)
{
#ifdef DHD_USE_KTHREAD_FOR_LOGTRACE
    if (dhd->thr_logtrace_ctl.thr_pid >= 0) {
        PROC_STOP_USING_BINARY_SEMA(&dhd->thr_logtrace_ctl);
    } else {
        DHD_ERROR(("%s: thr_logtrace_ctl(%ld) not inited\n", __FUNCTION__,
                   dhd->thr_logtrace_ctl.thr_pid));
    }
#else
    cancel_delayed_work_sync(&dhd->event_log_dispatcher_work);
#endif /* DHD_USE_KTHREAD_FOR_LOGTRACE */
}

void dhd_flush_logtrace_process(dhd_info_t *dhd)
{
#ifdef DHD_USE_KTHREAD_FOR_LOGTRACE
    if (dhd->thr_logtrace_ctl.thr_pid >= 0) {
        PROC_FLUSH_USING_BINARY_SEMA(&dhd->thr_logtrace_ctl);
    } else {
        DHD_ERROR(("%s: thr_logtrace_ctl(%ld) not inited\n", __FUNCTION__,
                   dhd->thr_logtrace_ctl.thr_pid));
    }
#else
    flush_delayed_work(&dhd->event_log_dispatcher_work);
#endif /* DHD_USE_KTHREAD_FOR_LOGTRACE */
}

int dhd_init_logtrace_process(dhd_info_t *dhd)
{
#ifdef DHD_USE_KTHREAD_FOR_LOGTRACE
    dhd->thr_logtrace_ctl.thr_pid = DHD_PID_KT_INVALID;
    PROC_START(dhd_logtrace_thread, dhd, &dhd->thr_logtrace_ctl, 0,
               "dhd_logtrace_thread");
    if (dhd->thr_logtrace_ctl.thr_pid < 0) {
        DHD_ERROR(("%s: init logtrace process failed\n", __FUNCTION__));
        return BCME_ERROR;
    } else {
        DHD_ERROR(("%s: thr_logtrace_ctl(%ld) succedded\n", __FUNCTION__,
                   dhd->thr_logtrace_ctl.thr_pid));
    }
#else
    INIT_DELAYED_WORK(&dhd->event_log_dispatcher_work,
                      dhd_event_logtrace_process);
#endif /* DHD_USE_KTHREAD_FOR_LOGTRACE */
    return BCME_OK;
}

int dhd_reinit_logtrace_process(dhd_info_t *dhd)
{
#ifdef DHD_USE_KTHREAD_FOR_LOGTRACE
    /* Re-init only if PROC_STOP from dhd_stop was called
     * which can be checked via thr_pid
     */
    if (dhd->thr_logtrace_ctl.thr_pid < 0) {
        PROC_START(dhd_logtrace_thread, dhd, &dhd->thr_logtrace_ctl, 0,
                   "dhd_logtrace_thread");
        if (dhd->thr_logtrace_ctl.thr_pid < 0) {
            DHD_ERROR(("%s: reinit logtrace process failed\n", __FUNCTION__));
            return BCME_ERROR;
        } else {
            DHD_ERROR(("%s: thr_logtrace_ctl(%ld) succedded\n", __FUNCTION__,
                       dhd->thr_logtrace_ctl.thr_pid));
        }
    }
#else
    /* No need to re-init for WQ as calcel_delayed_work_sync will
     * will not delete the WQ
     */
#endif /* DHD_USE_KTHREAD_FOR_LOGTRACE */
    return BCME_OK;
}

void dhd_event_logtrace_enqueue(dhd_pub_t *dhdp, int ifidx, void *pktbuf)
{
    dhd_info_t *dhd = (dhd_info_t *)dhdp->info;

#ifdef PCIE_FULL_DONGLE
    /* Add ifidx in the PKTTAG */
    DHD_PKTTAG_SET_IFID((dhd_pkttag_fr_t *)PKTTAG(pktbuf), ifidx);
#endif /* PCIE_FULL_DONGLE */
    skb_queue_tail(&dhd->evt_trace_queue, pktbuf);

    dhd_schedule_logtrace(dhd);
}

void dhd_event_logtrace_flush_queue(dhd_pub_t *dhdp)
{
    dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
    struct sk_buff *skb;

    while ((skb = skb_dequeue(&dhd->evt_trace_queue)) != NULL) {
#ifdef DHD_USE_STATIC_CTRLBUF
        PKTFREE_STATIC(dhdp->osh, skb, FALSE);
#else
        PKTFREE(dhdp->osh, skb, FALSE);
#endif /* DHD_USE_STATIC_CTRLBUF */
    }
}

void dhd_sendup_info_buf(dhd_pub_t *dhdp, uint8 *msg)
{
    struct sk_buff *skb = NULL;
    uint32 pktsize = 0;
    void *pkt = NULL;
    info_buf_payload_hdr_t *infobuf = NULL;
    dhd_info_t *dhd = dhdp->info;
    uint8 *pktdata = NULL;

    if (!msg) {
        return;
    }

    /* msg = |infobuf_ver(u32)|info_buf_payload_hdr_t|msgtrace_hdr_t|<var len
     * data>| */
    infobuf = (info_buf_payload_hdr_t *)(msg + sizeof(uint32));
    pktsize = (uint32)(ltoh16(infobuf->length) +
                       sizeof(info_buf_payload_hdr_t) + sizeof(uint32));
    pkt = PKTGET(dhdp->osh, pktsize, FALSE);
    if (!pkt) {
        DHD_ERROR(("%s: skb alloc failed ! not sending event log up.\n",
                   __FUNCTION__));
    } else {
        PKTSETLEN(dhdp->osh, pkt, pktsize);
        pktdata = PKTDATA(dhdp->osh, pkt);
        memcpy(pktdata, msg, pktsize);
        /* For infobuf packets assign skb->dev with
         * Primary interface n/w device
         */
        skb = PKTTONATIVE(dhdp->osh, pkt);
        skb->dev = dhd->iflist[0]->net;
        /* Send pkt UP */
        dhd_netif_rx_ni(skb);
    }
}
#endif /* SHOW_LOGTRACE */

/** Called when a frame is received by the dongle on interface 'ifidx' */
void dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, void *pktbuf, int numpkt,
                  uint8 chan)
{
    dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
    struct sk_buff *skb;
    uchar *eth;
    uint len;
    void *data, *pnext = NULL;
    int i;
    dhd_if_t *ifp;
    wl_event_msg_t event;
    int tout_rx = 0;
    int tout_ctrl = 0;
    void *skbhead = NULL;
    void *skbprev = NULL;
    uint16 protocol;
    unsigned char *dump_data;
#ifdef DHD_MCAST_REGEN
    uint8 interface_role;
    if_flow_lkup_t *if_flow_lkup;
    unsigned long flags;
#endif // endif
#ifdef DHD_WAKE_STATUS
    int pkt_wake = 0;
    wake_counts_t *wcp = NULL;
#endif /* DHD_WAKE_STATUS */

#ifdef CONFIG_AP6XXX_WIFI6_HDF
    struct NetDevice *netDevice = NULL;
    struct sk_buff *eap_skb = NULL;
    int ret = 0;
#endif
    DHD_TRACE(("%s: Enter\n", __FUNCTION__));
    BCM_REFERENCE(dump_data);

#ifdef DHD_TPUT_PATCH
    if (dhdp->conf->pktsetsum) {
        PKTSETSUMGOOD(pktbuf, TRUE);
    }
#endif

    for (i = 0; pktbuf && i < numpkt; i++, pktbuf = pnext) {
        struct ether_header *eh;

        pnext = PKTNEXT(dhdp->osh, pktbuf);
        PKTSETNEXT(dhdp->osh, pktbuf, NULL);

        /* info ring "debug" data, which is not a 802.3 frame, is sent/hacked
         * with a special ifidx of DHD_DUMMY_INFO_IF.  This is just internal to
         * dhd to get the data from
         * dhd_msgbuf.c:dhd_prot_infobuf_cmplt_process() to here (dhd_rx_frame).
         */
        if (ifidx == DHD_DUMMY_INFO_IF) {
            /* Event msg printing is called from dhd_rx_frame which is in
             * Tasklet context in case of PCIe FD, in case of other bus this
             * will be from DPC context. If we get bunch of events from Dongle
             * then printing all of them from Tasklet/DPC context that too in
             * data path is costly. Also in the new Dongle SW(4359, 4355
             * onwards) console prints too come as events with type WLC_E_TRACE.
             * We'll print this console logs from the WorkQueue context by
             * enqueing SKB here and Dequeuing will be done in WorkQueue and
             * will be freed only if logtrace_pkt_sendup is TRUE
             */
#ifdef SHOW_LOGTRACE
            dhd_event_logtrace_enqueue(dhdp, ifidx, pktbuf);
#else /* !SHOW_LOGTRACE */
            /* If SHOW_LOGTRACE not defined and ifidx is DHD_DUMMY_INFO_IF,
             * free the PKT here itself
             */
#ifdef DHD_USE_STATIC_CTRLBUF
            PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
#else
            PKTFREE(dhdp->osh, pktbuf, FALSE);
#endif /* DHD_USE_STATIC_CTRLBUF */
#endif /* SHOW_LOGTRACE */
            continue;
        }
#ifdef DHD_WAKE_STATUS
#ifdef BCMDBUS
        wcp = NULL;
#else
        pkt_wake = dhd_bus_get_bus_wake(dhdp);
        wcp = dhd_bus_get_wakecount(dhdp);
#endif /* BCMDBUS */
        if (wcp == NULL) {
            /* If wakeinfo count buffer is null do not  update wake count values
             */
            pkt_wake = 0;
        }
#endif /* DHD_WAKE_STATUS */

        eh = (struct ether_header *)PKTDATA(dhdp->osh, pktbuf);

        if (ifidx >= DHD_MAX_IFS) {
            DHD_ERROR(("%s: ifidx(%d) Out of bound. drop packet\n",
                       __FUNCTION__, ifidx));
            if (ntoh16(eh->ether_type) == ETHER_TYPE_BRCM) {
#ifdef DHD_USE_STATIC_CTRLBUF
                PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
#else
                PKTFREE(dhdp->osh, pktbuf, FALSE);
#endif /* DHD_USE_STATIC_CTRLBUF */
            } else {
                PKTCFREE(dhdp->osh, pktbuf, FALSE);
            }
            continue;
        }

        ifp = dhd->iflist[ifidx];
        if (ifp == NULL) {
            DHD_ERROR(("%s: ifp is NULL. drop packet\n", __FUNCTION__));
            if (ntoh16(eh->ether_type) == ETHER_TYPE_BRCM) {
#ifdef DHD_USE_STATIC_CTRLBUF
                PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
#else
                PKTFREE(dhdp->osh, pktbuf, FALSE);
#endif /* DHD_USE_STATIC_CTRLBUF */
            } else {
                PKTCFREE(dhdp->osh, pktbuf, FALSE);
            }
            continue;
        }

        /* Dropping only data packets before registering net device to avoid
         * kernel panic */
#ifndef PROP_TXSTATUS_VSDB
        if ((!ifp->net || ifp->net->reg_state != NETREG_REGISTERED) &&
            (ntoh16(eh->ether_type) != ETHER_TYPE_BRCM))
#else
        if ((!ifp->net || ifp->net->reg_state != NETREG_REGISTERED ||
             !dhd->pub.up) &&
            (ntoh16(eh->ether_type) != ETHER_TYPE_BRCM))
#endif /* PROP_TXSTATUS_VSDB */
        {
            DHD_ERROR(("%s: net device is NOT registered yet. drop packet\n",
                       __FUNCTION__));
            PKTCFREE(dhdp->osh, pktbuf, FALSE);
            continue;
        }

#ifdef PROP_TXSTATUS
        if (dhd_wlfc_is_header_only_pkt(dhdp, pktbuf)) {
            /* WLFC may send header only packet when
            there is an urgent message but no packet to
            piggy-back on
            */
            PKTCFREE(dhdp->osh, pktbuf, FALSE);
            continue;
        }
#endif // endif
#ifdef DHD_L2_FILTER
        /* If block_ping is enabled drop the ping packet */
        if (ifp->block_ping) {
            if (bcm_l2_filter_block_ping(dhdp->osh, pktbuf) == BCME_OK) {
                PKTCFREE(dhdp->osh, pktbuf, FALSE);
                continue;
            }
        }
        if (ifp->grat_arp && DHD_IF_ROLE_STA(dhdp, ifidx)) {
            if (bcm_l2_filter_gratuitous_arp(dhdp->osh, pktbuf) == BCME_OK) {
                PKTCFREE(dhdp->osh, pktbuf, FALSE);
                continue;
            }
        }
        if (ifp->parp_enable && DHD_IF_ROLE_AP(dhdp, ifidx)) {
            int ret = dhd_l2_filter_pkt_handle(dhdp, ifidx, pktbuf, FALSE);
            /* Drop the packets if l2 filter has processed it already
             * otherwise continue with the normal path
             */
            if (ret == BCME_OK) {
                PKTCFREE(dhdp->osh, pktbuf, TRUE);
                continue;
            }
        }
        if (ifp->block_tdls) {
            if (bcm_l2_filter_block_tdls(dhdp->osh, pktbuf) == BCME_OK) {
                PKTCFREE(dhdp->osh, pktbuf, FALSE);
                continue;
            }
        }
#endif /* DHD_L2_FILTER */

#ifdef DHD_MCAST_REGEN
        DHD_FLOWID_LOCK(dhdp->flowid_lock, flags);
        if_flow_lkup = (if_flow_lkup_t *)dhdp->if_flow_lkup;
        ASSERT(if_flow_lkup);

        interface_role = if_flow_lkup[ifidx].role;
        DHD_FLOWID_UNLOCK(dhdp->flowid_lock, flags);

        if (ifp->mcast_regen_bss_enable &&
            (interface_role != WLC_E_IF_ROLE_WDS) &&
            !DHD_IF_ROLE_AP(dhdp, ifidx) && ETHER_ISUCAST(eh->ether_dhost)) {
            if (dhd_mcast_reverse_translation(eh) == BCME_OK) {
#ifdef DHD_PSTA
                /* Change bsscfg to primary bsscfg for unicast-multicast packets
                 */
                if ((dhd_get_psta_mode(dhdp) == DHD_MODE_PSTA) ||
                    (dhd_get_psta_mode(dhdp) == DHD_MODE_PSR)) {
                    if (ifidx != 0) {
                        /* Let the primary in PSTA interface handle this
                         * frame after unicast to Multicast conversion
                         */
                        ifp = dhd_get_ifp(dhdp, 0);
                        ASSERT(ifp);
                    }
                }
            }
#endif /* PSTA */
        }
#endif /* MCAST_REGEN */

#ifdef DHDTCPSYNC_FLOOD_BLK
        if (dhd_tcpdata_get_flag(dhdp, pktbuf) == FLAG_SYNC) {
            int delta_sec;
            int delta_sync;
            int sync_per_sec;
            u64 curr_time = DIV_U64_BY_U32(OSL_LOCALTIME_NS(), NSEC_PER_SEC);
            ifp->tsync_rcvd++;
            delta_sync = ifp->tsync_rcvd - ifp->tsyncack_txed;
            delta_sec = curr_time - ifp->last_sync;
            if (delta_sec > 1) {
                sync_per_sec = delta_sync / delta_sec;
                if (sync_per_sec > TCP_SYNC_FLOOD_LIMIT) {
                    schedule_work(&ifp->blk_tsfl_work);
                    DHD_ERROR(("ifx %d TCP SYNC Flood attack suspected! "
                               "sync recvied %d pkt/sec \n",
                               ifidx, sync_per_sec));
                }
                dhd_reset_tcpsync_info_by_ifp(ifp);
            }
        }
#endif /* DHDTCPSYNC_FLOOD_BLK */

#ifdef DHDTCPACK_SUPPRESS
        dhd_tcpdata_info_get(dhdp, pktbuf);
#endif // endif
        skb = PKTTONATIVE(dhdp->osh, pktbuf);

        ASSERT(ifp);
        skb->dev = ifp->net;
#ifdef DHD_WET
        /* wet related packet proto manipulation should be done in DHD
         * since dongle doesn't have complete payload
         */
        if (WET_ENABLED(&dhd->pub) &&
            (dhd_wet_recv_proc(dhd->pub.wet_info, pktbuf) < 0)) {
            DHD_INFO(("%s:%s: wet recv proc failed\n", __FUNCTION__,
                      dhd_ifname(dhdp, ifidx)));
        }
#endif /* DHD_WET */

#ifdef DHD_PSTA
        if (PSR_ENABLED(dhdp) &&
            (dhd_psta_proc(dhdp, ifidx, &pktbuf, FALSE) < 0)) {
            DHD_ERROR(("%s:%s: psta recv proc failed\n", __FUNCTION__,
                       dhd_ifname(dhdp, ifidx)));
        }
#endif /* DHD_PSTA */

#ifdef PCIE_FULL_DONGLE
        if ((DHD_IF_ROLE_AP(dhdp, ifidx) || DHD_IF_ROLE_P2PGO(dhdp, ifidx)) &&
            (!ifp->ap_isolate)) {
            eh = (struct ether_header *)PKTDATA(dhdp->osh, pktbuf);
            if (ETHER_ISUCAST(eh->ether_dhost)) {
                if (dhd_find_sta(dhdp, ifidx, (void *)eh->ether_dhost)) {
                    dhd_sendpkt(dhdp, ifidx, pktbuf);
                    continue;
                }
            } else {
                void *npktbuf = NULL;
                if ((ntoh16(eh->ether_type) != ETHER_TYPE_IAPP_L2_UPDATE) &&
                    (npktbuf = PKTDUP(dhdp->osh, pktbuf)) != NULL) {
                    dhd_sendpkt(dhdp, ifidx, npktbuf);
                }
            }
        }
#endif /* PCIE_FULL_DONGLE */
#ifdef DHD_POST_EAPOL_M1_AFTER_ROAM_EVT
        if (IS_STA_IFACE(ndev_to_wdev(ifp->net)) &&
            (ifp->recv_reassoc_evt == TRUE) && (ifp->post_roam_evt == FALSE) &&
            (dhd_is_4way_msg((char *)(skb->data)) == EAPOL_4WAY_M1)) {
            DHD_ERROR(("%s: Reassoc is in progress. "
                       "Drop EAPOL M1 frame\n",
                       __FUNCTION__));
            PKTFREE(dhdp->osh, pktbuf, FALSE);
            continue;
        }
#endif /* DHD_POST_EAPOL_M1_AFTER_ROAM_EVT */
#ifdef WLEASYMESH
        if ((dhdp->conf->fw_type == FW_TYPE_EZMESH) &&
            (ntoh16(eh->ether_type) != ETHER_TYPE_BRCM)) {
            uint16 *da = (uint16 *)(eh->ether_dhost);
            ASSERT(ISALIGNED(da, 0x2));

            /* XXX: Special handling for 1905 messages
             * if DA matches with configured 1905 AL MAC addresses
             * bypass fwder and foward it to linux stack
             */
            if (ntoh16(eh->ether_type) == ETHER_TYPE_1905_1) {
                if (!eacmp(da, ifp->_1905_al_ucast) ||
                    !eacmp(da, ifp->_1905_al_mcast)) {
                } else {
                }
            }
        }
#endif /* WLEASYMESH */
        /* Get the protocol, maintain skb around eth_type_trans()
         * The main reason for this hack is for the limitation of
         * Linux 2.4 where 'eth_type_trans' uses the 'net->hard_header_len'
         * to perform skb_pull inside vs ETH_HLEN. Since to avoid
         * coping of the packet coming from the network stack to add
         * BDC, Hardware header etc, during network interface registration
         * we set the 'net->hard_header_len' to ETH_HLEN + extra space required
         * for BDC, Hardware header etc. and not just the ETH_HLEN
         */
        eth = skb->data;
        len = skb->len;
        dump_data = skb->data;
        protocol = (skb->data[0xC] << 0x8) | skb->data[0xD];

        if (protocol == ETHER_TYPE_802_1X) {
            DBG_EVENT_LOG(dhdp, WIFI_EVENT_DRIVER_EAPOL_FRAME_RECEIVED);
#if defined(WL_CFG80211) && defined(WL_WPS_SYNC)
            wl_handle_wps_states(ifp->net, dump_data, len, FALSE);
#endif /* WL_CFG80211 && WL_WPS_SYNC */
#ifdef DHD_4WAYM4_FAIL_DISCONNECT
            if (dhd_is_4way_msg((uint8 *)(skb->data)) == EAPOL_4WAY_M3) {
                OSL_ATOMIC_SET(dhdp->osh, &ifp->m4state, M3_RXED);
            }
#endif /* DHD_4WAYM4_FAIL_DISCONNECT */
        }
        dhd_dump_pkt(dhdp, ifidx, dump_data, len, FALSE, NULL, NULL);

        skb->protocol = eth_type_trans(skb, skb->dev);

        if (skb->pkt_type == PACKET_MULTICAST) {
            dhd->pub.rx_multicast++;
            ifp->stats.multicast++;
        }

        skb->data = eth;
        skb->len = len;

#ifdef CONFIG_AP6XXX_WIFI6_HDF
        // send EAPOL pkt to HDF WIFI
        if (protocol == ETHER_TYPE_802_1X) {
            netDevice = GetHdfNetDeviceByLinuxInf(skb->dev);
            if (netDevice && netDevice->netDeviceIf != NULL &&
                netDevice->netDeviceIf->specialEtherTypeProcess != NULL) {
                eap_skb = skb_copy(skb, GFP_ATOMIC);
                skb_linearize(eap_skb);
                ret = netDevice->netDeviceIf->specialEtherTypeProcess(netDevice,
                                                                      eap_skb);
                DHD_ERROR(("%s: send EAPOL pkt ret=%d, from %s, data_len=%d\n",
                           __FUNCTION__, ret, netDevice->name, eap_skb->len));
                print_hex_dump(KERN_INFO, "recv EAPOL: ", DUMP_PREFIX_NONE, 0x10,
                               1, eap_skb->data, eap_skb->len, true);
            }
        }
#endif
        DHD_DBG_PKT_MON_RX(dhdp, skb);
        /* Strip header, count, deliver upward */
        skb_pull(skb, ETH_HLEN);

        /* Process special event packets and then discard them */
        memset(&event, 0, sizeof(event));
        if (ntoh16(skb->protocol) == ETHER_TYPE_BRCM) {
            bcm_event_msg_u_t evu;
            int ret_event, event_type;
            void *pkt_data = skb_mac_header(skb);

            ret_event = wl_host_event_get_data(pkt_data, len, &evu);
            if (ret_event != BCME_OK) {
                DHD_ERROR(("%s: wl_host_event_get_data err = %d\n",
                           __FUNCTION__, ret_event));
#ifdef DHD_USE_STATIC_CTRLBUF
                PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
#else
                PKTFREE(dhdp->osh, pktbuf, FALSE);
#endif // endif
                continue;
            }

            memcpy(&event, &evu.event, sizeof(wl_event_msg_t));
            event_type = ntoh32_ua((void *)&event.event_type);
#ifdef SHOW_LOGTRACE
            /* Event msg printing is called from dhd_rx_frame which is in
             * Tasklet context in case of PCIe FD, in case of other bus this
             * will be from DPC context. If we get bunch of events from Dongle
             * then printing all of them from Tasklet/DPC context that too in
             * data path is costly. Also in the new Dongle SW(4359, 4355
             * onwards) console prints too come as events with type WLC_E_TRACE.
             * We'll print this console logs from the WorkQueue context by
             * enqueing SKB here and Dequeuing will be done in WorkQueue and
             * will be freed only if logtrace_pkt_sendup is true
             */
            if (event_type == WLC_E_TRACE) {
                DHD_EVENT(("%s: WLC_E_TRACE\n", __FUNCTION__));
                dhd_event_logtrace_enqueue(dhdp, ifidx, pktbuf);
                continue;
            }
#endif /* SHOW_LOGTRACE */

            ret_event =
                dhd_wl_host_event(dhd, ifidx, pkt_data, len, &event, &data);

            wl_event_to_host_order(&event);
            if (!tout_ctrl) {
                tout_ctrl = DHD_PACKET_TIMEOUT_MS;
            }

#if defined(PNO_SUPPORT)
            if (event_type == WLC_E_PFN_NET_FOUND) {
                /* enforce custom wake lock to garantee that Kernel not
                 * suspended */
                tout_ctrl = CUSTOM_PNO_EVENT_LOCK_xTIME * DHD_PACKET_TIMEOUT_MS;
            }
#endif /* PNO_SUPPORT */
            if (numpkt != 1) {
                DHD_TRACE(("%s: Got BRCM event packet in a chained packet.\n",
                           __FUNCTION__));
            }

#ifdef DHD_WAKE_STATUS
            if (unlikely(pkt_wake)) {
#ifdef DHD_WAKE_EVENT_STATUS
                if (event.event_type < WLC_E_LAST) {
                    wcp->rc_event[event.event_type]++;
                    wcp->rcwake++;
                    pkt_wake = 0;
                }
#endif /* DHD_WAKE_EVENT_STATUS */
            }
#endif /* DHD_WAKE_STATUS */

            /* For delete virtual interface event, wl_host_event returns
             * positive i/f index, do not proceed. just free the pkt.
             */
            if ((event_type == WLC_E_IF) && (ret_event > 0)) {
                DHD_ERROR(("%s: interface is deleted. Free event packet\n",
                           __FUNCTION__));
#ifdef DHD_USE_STATIC_CTRLBUF
                PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
#else
                PKTFREE(dhdp->osh, pktbuf, FALSE);
#endif // endif
                continue;
            }

            /*
             * For the event packets, there is a possibility
             * of ifidx getting modifed.Thus update the ifp
             * once again.
             */
            ASSERT(ifidx < DHD_MAX_IFS && dhd->iflist[ifidx]);
            ifp = dhd->iflist[ifidx];
#ifndef PROP_TXSTATUS_VSDB
            if (!(ifp && ifp->net &&
                  (ifp->net->reg_state == NETREG_REGISTERED)))
#else
            if (!(ifp && ifp->net &&
                  (ifp->net->reg_state == NETREG_REGISTERED) && dhd->pub.up))
#endif /* PROP_TXSTATUS_VSDB */
            {
                DHD_ERROR(
                    ("%s: net device is NOT registered. drop event packet\n",
                     __FUNCTION__));
#ifdef DHD_USE_STATIC_CTRLBUF
                PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
#else
                PKTFREE(dhdp->osh, pktbuf, FALSE);
#endif // endif
                continue;
            }

#ifdef SENDPROB
            if (dhdp->wl_event_enabled ||
                (dhdp->recv_probereq &&
                 (event.event_type == WLC_E_PROBREQ_MSG)))
#else
            if (dhdp->wl_event_enabled)
#endif
            {
#ifdef DHD_USE_STATIC_CTRLBUF
                /* If event bufs are allocated via static buf pool
                 * and wl events are enabled, make a copy, free the
                 * local one and send the copy up.
                 */
                void *npkt = PKTDUP(dhdp->osh, skb);
                /* Clone event and send it up */
                PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
                if (npkt) {
                    skb = npkt;
                } else {
                    DHD_ERROR(("skb clone failed. dropping event.\n"));
                    continue;
                }
#endif /* DHD_USE_STATIC_CTRLBUF */
            } else {
                /* If event enabled not explictly set, drop events */
#ifdef DHD_USE_STATIC_CTRLBUF
                PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
#else
                PKTFREE(dhdp->osh, pktbuf, FALSE);
#endif /* DHD_USE_STATIC_CTRLBUF */
                continue;
            }
        } else {
            tout_rx = DHD_PACKET_TIMEOUT_MS;

#ifdef PROP_TXSTATUS
            dhd_wlfc_save_rxpath_ac_time(dhdp, (uint8)PKTPRIO(skb));
#endif /* PROP_TXSTATUS */

#ifdef DHD_WAKE_STATUS
            if (unlikely(pkt_wake)) {
                wcp->rxwake++;
#ifdef DHD_WAKE_RX_STATUS
#define ETHER_ICMP6_HEADER 20
#define ETHER_IPV6_SADDR (ETHER_ICMP6_HEADER + 2)
#define ETHER_IPV6_DAADR (ETHER_IPV6_SADDR + IPV6_ADDR_LEN)
#define ETHER_ICMPV6_TYPE (ETHER_IPV6_DAADR + IPV6_ADDR_LEN)

                if (ntoh16(skb->protocol) == ETHER_TYPE_ARP) { /* ARP */
                    wcp->rx_arp++;
                }
                if (dump_data[0] == 0xFF) { /* Broadcast */
                    wcp->rx_bcast++;
                } else if (dump_data[0] & 0x01) { /* Multicast */
                    wcp->rx_mcast++;
                    if (ntoh16(skb->protocol) == ETHER_TYPE_IPV6) {
                        wcp->rx_multi_ipv6++;
                        if ((skb->len > ETHER_ICMP6_HEADER) &&
                            (dump_data[ETHER_ICMP6_HEADER] == IPPROTO_ICMPV6)) {
                            wcp->rx_icmpv6++;
                            if (skb->len > ETHER_ICMPV6_TYPE) {
                                switch (dump_data[ETHER_ICMPV6_TYPE]) {
                                    case NDISC_ROUTER_ADVERTISEMENT:
                                        wcp->rx_icmpv6_ra++;
                                        break;
                                    case NDISC_NEIGHBOUR_ADVERTISEMENT:
                                        wcp->rx_icmpv6_na++;
                                        break;
                                    case NDISC_NEIGHBOUR_SOLICITATION:
                                        wcp->rx_icmpv6_ns++;
                                        break;
                                }
                            }
                        }
                    } else if (dump_data[0x2] == 0x5E) {
                        wcp->rx_multi_ipv4++;
                    } else {
                        wcp->rx_multi_other++;
                    }
                } else { /* Unicast */
                    wcp->rx_ucast++;
                }
#undef ETHER_ICMP6_HEADER
#undef ETHER_IPV6_SADDR
#undef ETHER_IPV6_DAADR
#undef ETHER_ICMPV6_TYPE
#endif /* DHD_WAKE_RX_STATUS */
                pkt_wake = 0;
            }
#endif /* DHD_WAKE_STATUS */
        }

#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 11, 0)
        ifp->net->last_rx = jiffies;
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(4, 11, 0) */

        if (ntoh16(skb->protocol) != ETHER_TYPE_BRCM) {
            dhdp->dstats.rx_bytes += skb->len;
            dhdp->rx_packets++; /* Local count */
            ifp->stats.rx_bytes += skb->len;
            ifp->stats.rx_packets++;
        }

        if (in_interrupt()) {
            bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE, __FUNCTION__,
                                 __LINE__);
            DHD_PERIM_UNLOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
#if defined(WL_MONITOR) && defined(BCMSDIO)
            if (dhd_monitor_enabled(dhdp, ifidx)) {
                dhd_rx_mon_pkt_sdio(dhdp, skb, ifidx);
            } else
#endif /* WL_MONITOR && BCMSDIO */
#if defined(DHD_LB_RXP)
                netif_receive_skb(skb);
#else  /* !defined(DHD_LB_RXP) */
            netif_rx(skb);
#endif /* !defined(DHD_LB_RXP) */
            DHD_PERIM_LOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
        } else {
            if (dhd->rxthread_enabled) {
                if (!skbhead) {
                    skbhead = skb;
                } else {
                    PKTSETNEXT(dhdp->osh, skbprev, skb);
                }
                skbprev = skb;
            } else {
                /* If the receive is not processed inside an ISR,
                 * the softirqd must be woken explicitly to service
                 * the NET_RX_SOFTIRQ.	In 2.6 kernels, this is handled
                 * by netif_rx_ni(), but in earlier kernels, we need
                 * to do it manually.
                 */
                bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE, __FUNCTION__,
                                     __LINE__);

#if defined(ARGOS_NOTIFY_CB)
                argos_register_notifier_deinit();
#endif // endif
#if defined(BCMPCIE) && defined(DHDTCPACK_SUPPRESS)
                dhd_tcpack_suppress_set(&dhd->pub, TCPACK_SUP_OFF);
#endif /* BCMPCIE && DHDTCPACK_SUPPRESS */
                DHD_PERIM_UNLOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
#if defined(DHD_LB_RXP)
                netif_receive_skb(skb);
#else  /* !defined(DHD_LB_RXP) */
                netif_rx_ni(skb);
#endif /* defined(DHD_LB_RXP) */
                DHD_PERIM_LOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
            }
        }
    }

    if (dhd->rxthread_enabled && skbhead) {
        dhd_sched_rxf(dhdp, skbhead);
    }

    DHD_OS_WAKE_LOCK_RX_TIMEOUT_ENABLE(dhdp, tout_rx);
    DHD_OS_WAKE_LOCK_CTRL_TIMEOUT_ENABLE(dhdp, tout_ctrl);
}

void dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx)
{
    /* Linux version has nothing to do */
    return;
}

void dhd_txcomplete(dhd_pub_t *dhdp, void *txp, bool success)
{
    dhd_info_t *dhd = (dhd_info_t *)(dhdp->info);
    struct ether_header *eh;
    uint16 type;

    dhd_prot_hdrpull(dhdp, NULL, txp, NULL, NULL);

    eh = (struct ether_header *)PKTDATA(dhdp->osh, txp);
    type = ntoh16(eh->ether_type);
    if (type == ETHER_TYPE_802_1X) {
        atomic_dec(&dhd->pend_8021x_cnt);
    }

#ifdef PROP_TXSTATUS
    if (dhdp->wlfc_state && (dhdp->proptxstatus_mode != WLFC_FCMODE_NONE)) {
        dhd_if_t *ifp = dhd->iflist[DHD_PKTTAG_IF(PKTTAG(txp))];
        uint datalen = PKTLEN(dhd->pub.osh, txp);
        if (ifp != NULL) {
            if (success) {
                dhd->pub.tx_packets++;
                ifp->stats.tx_packets++;
                ifp->stats.tx_bytes += datalen;
            } else {
                ifp->stats.tx_dropped++;
            }
        }
    }
#endif // endif
}

static struct net_device_stats *dhd_get_stats(struct net_device *net)
{
    dhd_info_t *dhd = DHD_DEV_INFO(net);
    dhd_if_t *ifp;

    DHD_TRACE(("%s: Enter\n", __FUNCTION__));

    if (!dhd) {
        DHD_ERROR(("%s : dhd is NULL\n", __FUNCTION__));
        goto error;
    }

    ifp = dhd_get_ifp_by_ndev(&dhd->pub, net);
    if (!ifp) {
        /* return empty stats */
        DHD_ERROR(("%s: BAD_IF\n", __FUNCTION__));
        goto error;
    }

    if (dhd->pub.up) {
        /* Use the protocol to get dongle stats */
        dhd_prot_dstats(&dhd->pub);
    }
    return &ifp->stats;

error:
    memset(&net->stats, 0, sizeof(net->stats));
    return &net->stats;
}

#ifndef BCMDBUS
static int dhd_watchdog_thread(void *data)
{
    tsk_ctl_t *tsk = (tsk_ctl_t *)data;
    dhd_info_t *dhd = (dhd_info_t *)tsk->parent;
    /* This thread doesn't need any user-level access,
     * so get rid of all our resources
     */
    if (dhd_watchdog_prio > 0) {
        struct sched_param param;
        param.sched_priority = (dhd_watchdog_prio < MAX_RT_PRIO)
                                   ? dhd_watchdog_prio
                                   : (MAX_RT_PRIO - 1);
        setScheduler(current, SCHED_FIFO, &param);
    }

    while (1) {
        if (down_interruptible(&tsk->sema) == 0) {
            unsigned long flags;
            unsigned long jiffies_at_start = jiffies;
            unsigned long time_lapse;
#ifdef BCMPCIE
            DHD_OS_WD_WAKE_LOCK(&dhd->pub);
#endif /* BCMPCIE */

            SMP_RD_BARRIER_DEPENDS();
            if (tsk->terminated) {
#ifdef BCMPCIE
                DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
#endif /* BCMPCIE */
                break;
            }

            if (dhd->pub.dongle_reset == FALSE) {
                DHD_TIMER(("%s:\n", __FUNCTION__));
                dhd_bus_watchdog(&dhd->pub);

                DHD_GENERAL_LOCK(&dhd->pub, flags);
                /* Count the tick for reference */
                dhd->pub.tickcnt++;
#ifdef DHD_L2_FILTER
                dhd_l2_filter_watchdog(&dhd->pub);
#endif /* DHD_L2_FILTER */
                time_lapse = jiffies - jiffies_at_start;

                /* Reschedule the watchdog */
                if (dhd->wd_timer_valid) {
                    mod_timer(
                        &dhd->timer,
                        jiffies + msecs_to_jiffies(dhd_watchdog_ms) -
                            min(msecs_to_jiffies(dhd_watchdog_ms), time_lapse));
                }
                DHD_GENERAL_UNLOCK(&dhd->pub, flags);
            }
#ifdef BCMPCIE
            DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
#endif /* BCMPCIE */
        } else {
            break;
        }
    }

    complete_and_exit(&tsk->completed, 0);
}

static void dhd_watchdog(ulong data)
{
    dhd_info_t *dhd = (dhd_info_t *)data;
    unsigned long flags;

    if (dhd->pub.dongle_reset) {
        return;
    }

    if (dhd->thr_wdt_ctl.thr_pid >= 0) {
        up(&dhd->thr_wdt_ctl.sema);
        return;
    }

#ifdef BCMPCIE
    DHD_OS_WD_WAKE_LOCK(&dhd->pub);
#endif /* BCMPCIE */
    /* Call the bus module watchdog */
    dhd_bus_watchdog(&dhd->pub);

    DHD_GENERAL_LOCK(&dhd->pub, flags);
    /* Count the tick for reference */
    dhd->pub.tickcnt++;

#ifdef DHD_L2_FILTER
    dhd_l2_filter_watchdog(&dhd->pub);
#endif /* DHD_L2_FILTER */
    /* Reschedule the watchdog */
    if (dhd->wd_timer_valid) {
        mod_timer(&dhd->timer, jiffies + msecs_to_jiffies(dhd_watchdog_ms));
    }
    DHD_GENERAL_UNLOCK(&dhd->pub, flags);
#ifdef BCMPCIE
    DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
#endif /* BCMPCIE */
}

#ifdef ENABLE_ADAPTIVE_SCHED
static void dhd_sched_policy(int prio)
{
    struct sched_param param;
    if (cpufreq_quick_get(0) <= CUSTOM_CPUFREQ_THRESH) {
        param.sched_priority = 0;
        setScheduler(current, SCHED_NORMAL, &param);
    } else {
        if (get_scheduler_policy(current) != SCHED_FIFO) {
            param.sched_priority =
                (prio < MAX_RT_PRIO) ? prio : (MAX_RT_PRIO - 1);
            setScheduler(current, SCHED_FIFO, &param);
        }
    }
}
#endif /* ENABLE_ADAPTIVE_SCHED */
#ifdef DEBUG_CPU_FREQ
static int dhd_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
                                void *data)
{
    dhd_info_t *dhd = container_of(nb, struct dhd_info, freq_trans);
    struct cpufreq_freqs *freq = data;
    if (dhd) {
        if (!dhd->new_freq) {
            goto exit;
        }
        if (val == CPUFREQ_POSTCHANGE) {
            DHD_ERROR(("cpu freq is changed to %u kHZ on CPU %d\n", freq->new,
                       freq->cpu));
            *per_cpu_ptr(dhd->new_freq, freq->cpu) = freq->new;
        }
    }
exit:
    return 0;
}
#endif /* DEBUG_CPU_FREQ */

static int dhd_dpc_thread(void *data)
{
    tsk_ctl_t *tsk = (tsk_ctl_t *)data;
    dhd_info_t *dhd = (dhd_info_t *)tsk->parent;

    /* This thread doesn't need any user-level access,
     * so get rid of all our resources
     */
    if (dhd_dpc_prio > 0) {
        struct sched_param param;
        param.sched_priority =
            (dhd_dpc_prio < MAX_RT_PRIO) ? dhd_dpc_prio : (MAX_RT_PRIO - 1);
        setScheduler(current, SCHED_FIFO, &param);
    }

#ifdef CUSTOM_DPC_CPUCORE
    set_cpus_allowed_ptr(current, cpumask_of(CUSTOM_DPC_CPUCORE));
#endif // endif
#ifdef CUSTOM_SET_CPUCORE
    dhd->pub.current_dpc = current;
#endif /* CUSTOM_SET_CPUCORE */
    /* Run until signal received */
    while (1) {
        if (dhd->pub.conf->dpc_cpucore >= 0) {
            printf("%s: set dpc_cpucore %d\n", __FUNCTION__,
                   dhd->pub.conf->dpc_cpucore);
            set_cpus_allowed_ptr(current,
                                 cpumask_of(dhd->pub.conf->dpc_cpucore));
            dhd->pub.conf->dpc_cpucore = -1;
        }
        if (dhd->pub.conf->dhd_dpc_prio >= 0) {
            struct sched_param param;
            printf("%s: set dhd_dpc_prio %d\n", __FUNCTION__,
                   dhd->pub.conf->dhd_dpc_prio);
            param.sched_priority = (dhd->pub.conf->dhd_dpc_prio < MAX_RT_PRIO)
                                       ? dhd->pub.conf->dhd_dpc_prio
                                       : (MAX_RT_PRIO - 1);
            setScheduler(current, SCHED_FIFO, &param);
            dhd->pub.conf->dhd_dpc_prio = -1;
        }
        if (!binary_sema_down(tsk)) {
#ifdef ENABLE_ADAPTIVE_SCHED
            dhd_sched_policy(dhd_dpc_prio);
#endif /* ENABLE_ADAPTIVE_SCHED */
            SMP_RD_BARRIER_DEPENDS();
            if (tsk->terminated) {
                break;
            }

            /* Call bus dpc unless it indicated down (then clean stop) */
            if (dhd->pub.busstate != DHD_BUS_DOWN) {
#ifdef DEBUG_DPC_THREAD_WATCHDOG
                int resched_cnt = 0;
#endif /* DEBUG_DPC_THREAD_WATCHDOG */
                dhd_os_wd_timer_extend(&dhd->pub, TRUE);
                while (dhd_bus_dpc(dhd->pub.bus)) {
                    /* process all data */
#ifdef DEBUG_DPC_THREAD_WATCHDOG
                    resched_cnt++;
                    if (resched_cnt > MAX_RESCHED_CNT) {
                        DHD_INFO(("%s Calling msleep to"
                                  "let other processes run. \n",
                                  __FUNCTION__));
                        dhd->pub.dhd_bug_on = true;
                        resched_cnt = 0;
                        OSL_SLEEP(1);
                    }
#endif /* DEBUG_DPC_THREAD_WATCHDOG */
                }
                dhd_os_wd_timer_extend(&dhd->pub, FALSE);
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
            } else {
                if (dhd->pub.up) {
                    dhd_bus_stop(dhd->pub.bus, TRUE);
                }
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
            }
        } else {
            break;
        }
    }
    complete_and_exit(&tsk->completed, 0);
}

static int dhd_rxf_thread(void *data)
{
    tsk_ctl_t *tsk = (tsk_ctl_t *)data;
    dhd_info_t *dhd = (dhd_info_t *)tsk->parent;
#if defined(WAIT_DEQUEUE)
#define RXF_WATCHDOG_TIME 250             /* BARK_TIME(1000) /  */
    ulong watchdogTime = OSL_SYSUPTIME(); /* msec */
#endif                                    // endif
    dhd_pub_t *pub = &dhd->pub;

    /* This thread doesn't need any user-level access,
     * so get rid of all our resources
     */
    if (dhd_rxf_prio > 0) {
        struct sched_param param;
        param.sched_priority =
            (dhd_rxf_prio < MAX_RT_PRIO) ? dhd_rxf_prio : (MAX_RT_PRIO - 1);
        setScheduler(current, SCHED_FIFO, &param);
    }

#ifdef CUSTOM_SET_CPUCORE
    dhd->pub.current_rxf = current;
#endif /* CUSTOM_SET_CPUCORE */
    /* Run until signal received */
    while (1) {
        if (dhd->pub.conf->rxf_cpucore >= 0) {
            printf("%s: set rxf_cpucore %d\n", __FUNCTION__,
                   dhd->pub.conf->rxf_cpucore);
            set_cpus_allowed_ptr(current,
                                 cpumask_of(dhd->pub.conf->rxf_cpucore));
            dhd->pub.conf->rxf_cpucore = -1;
        }
        if (down_interruptible(&tsk->sema) == 0) {
            void *skb;
#ifdef ENABLE_ADAPTIVE_SCHED
            dhd_sched_policy(dhd_rxf_prio);
#endif /* ENABLE_ADAPTIVE_SCHED */

            SMP_RD_BARRIER_DEPENDS();

            if (tsk->terminated) {
                break;
            }
            skb = dhd_rxf_dequeue(pub);
            if (skb == NULL) {
                continue;
            }
            while (skb) {
                void *skbnext = PKTNEXT(pub->osh, skb);
                PKTSETNEXT(pub->osh, skb, NULL);
                bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE, __FUNCTION__,
                                     __LINE__);
#if defined(WL_MONITOR) && defined(BCMSDIO)
                if (dhd_monitor_enabled(pub, 0)) {
                    dhd_rx_mon_pkt_sdio(pub, skb, 0);
                } else
#endif /* WL_MONITOR && BCMSDIO */
                    netif_rx_ni(skb);
                skb = skbnext;
            }
#if defined(WAIT_DEQUEUE)
            if (OSL_SYSUPTIME() - watchdogTime > RXF_WATCHDOG_TIME) {
                OSL_SLEEP(1);
                watchdogTime = OSL_SYSUPTIME();
            }
#endif // endif

            DHD_OS_WAKE_UNLOCK(pub);
        } else {
            break;
        }
    }
    complete_and_exit(&tsk->completed, 0);
}

#ifdef BCMPCIE
void dhd_dpc_enable(dhd_pub_t *dhdp)
{
#if defined(DHD_LB_RXP) || defined(DHD_LB_TXP)
    dhd_info_t *dhd;

    if (!dhdp || !dhdp->info) {
        return;
    }
    dhd = dhdp->info;
#endif /* DHD_LB_RXP || DHD_LB_TXP */

#ifdef DHD_LB_RXP
    __skb_queue_head_init(&dhd->rx_pend_queue);
#endif /* DHD_LB_RXP */

#ifdef DHD_LB_TXP
    skb_queue_head_init(&dhd->tx_pend_queue);
#endif /* DHD_LB_TXP */
}
#endif /* BCMPCIE */

#ifdef BCMPCIE
void dhd_dpc_kill(dhd_pub_t *dhdp)
{
    dhd_info_t *dhd;

    if (!dhdp) {
        return;
    }

    dhd = dhdp->info;

    if (!dhd) {
        return;
    }

    if (dhd->thr_dpc_ctl.thr_pid < 0) {
        tasklet_kill(&dhd->tasklet);
        DHD_ERROR(("%s: tasklet disabled\n", __FUNCTION__));
    }

#ifdef DHD_LB
#ifdef DHD_LB_RXP
    cancel_work_sync(&dhd->rx_napi_dispatcher_work);
    __skb_queue_purge(&dhd->rx_pend_queue);
#endif /* DHD_LB_RXP */
#ifdef DHD_LB_TXP
    cancel_work_sync(&dhd->tx_dispatcher_work);
    skb_queue_purge(&dhd->tx_pend_queue);
#endif /* DHD_LB_TXP */

    /* Kill the Load Balancing Tasklets */
#if defined(DHD_LB_TXC)
    tasklet_kill(&dhd->tx_compl_tasklet);
#endif /* DHD_LB_TXC */
#if defined(DHD_LB_RXC)
    tasklet_kill(&dhd->rx_compl_tasklet);
#endif /* DHD_LB_RXC */
#if defined(DHD_LB_TXP)
    tasklet_kill(&dhd->tx_tasklet);
#endif /* DHD_LB_TXP */
#endif /* DHD_LB */
}

void dhd_dpc_tasklet_kill(dhd_pub_t *dhdp)
{
    dhd_info_t *dhd;

    if (!dhdp) {
        return;
    }

    dhd = dhdp->info;

    if (!dhd) {
        return;
    }

    if (dhd->thr_dpc_ctl.thr_pid < 0) {
        tasklet_kill(&dhd->tasklet);
    }
}
#endif /* BCMPCIE */

static void dhd_dpc(ulong data)
{
    dhd_info_t *dhd;

    dhd = (dhd_info_t *)data;

    /* this (tasklet) can be scheduled in dhd_sched_dpc[dhd_linux.c]
     * down below , wake lock is set,
     * the tasklet is initialized in dhd_attach()
     */
    /* Call bus dpc unless it indicated down (then clean stop) */
    if (dhd->pub.busstate != DHD_BUS_DOWN) {
#if defined(DHD_LB_STATS) && defined(PCIE_FULL_DONGLE)
        DHD_LB_STATS_INCR(dhd->dhd_dpc_cnt);
#endif /* DHD_LB_STATS && PCIE_FULL_DONGLE */
        if (dhd_bus_dpc(dhd->pub.bus)) {
            tasklet_schedule(&dhd->tasklet);
        }
    } else {
        dhd_bus_stop(dhd->pub.bus, TRUE);
    }
}

void dhd_sched_dpc(dhd_pub_t *dhdp)
{
    dhd_info_t *dhd = (dhd_info_t *)dhdp->info;

    if (dhd->thr_dpc_ctl.thr_pid >= 0) {
        DHD_OS_WAKE_LOCK(dhdp);
        /* If the semaphore does not get up,
         * wake unlock should be done here
         */
        if (!binary_sema_up(&dhd->thr_dpc_ctl)) {
            DHD_OS_WAKE_UNLOCK(dhdp);
        }
        return;
    } else {
        dhd_bus_set_dpc_sched_time(dhdp);
        tasklet_schedule(&dhd->tasklet);
    }
}
#endif /* BCMDBUS */

static void dhd_sched_rxf(dhd_pub_t *dhdp, void *skb)
{
    dhd_info_t *dhd = (dhd_info_t *)dhdp->info;

    DHD_OS_WAKE_LOCK(dhdp);

    DHD_TRACE(("dhd_sched_rxf: Enter\n"));
    do {
        if (dhd_rxf_enqueue(dhdp, skb) == BCME_OK) {
            break;
        }
    } while (1);
    if (dhd->thr_rxf_ctl.thr_pid >= 0) {
        up(&dhd->thr_rxf_ctl.sema);
    }
    return;
}

#if defined(BCM_DNGL_EMBEDIMAGE) || defined(BCM_REQUEST_FW)
#endif /* defined(BCM_DNGL_EMBEDIMAGE) || defined(BCM_REQUEST_FW) */

#ifdef TOE
/* Retrieve current toe component enables, which are kept as a bitmap in toe_ol
 * iovar */
static int dhd_toe_get(dhd_info_t *dhd, int ifidx, uint32 *toe_ol)
{
    char buf[32];
    int ret;

    ret = dhd_iovar(&dhd->pub, ifidx, "toe_ol", NULL, 0, (char *)&buf,
                    sizeof(buf), FALSE);
    if (ret < 0) {
        if (ret == -EIO) {
            DHD_ERROR(("%s: toe not supported by device\n",
                       dhd_ifname(&dhd->pub, ifidx)));
            return -EOPNOTSUPP;
        }

        DHD_INFO(("%s: could not get toe_ol: ret=%d\n",
                  dhd_ifname(&dhd->pub, ifidx), ret));
        return ret;
    }

    memcpy(toe_ol, buf, sizeof(uint32));
    return 0;
}

/* Set current toe component enables in toe_ol iovar, and set toe global enable
 * iovar */
static int dhd_toe_set(dhd_info_t *dhd, int ifidx, uint32 toe_ol)
{
    int toe, ret;

    /* Set toe_ol as requested */
    ret = dhd_iovar(&dhd->pub, ifidx, "toe_ol", (char *)&toe_ol, sizeof(toe_ol),
                    NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s: could not set toe_ol: ret=%d\n",
                   dhd_ifname(&dhd->pub, ifidx), ret));
        return ret;
    }

    /* Enable toe globally only if any components are enabled. */
    toe = (toe_ol != 0);
    ret = dhd_iovar(&dhd->pub, ifidx, "toe", (char *)&toe, sizeof(toe), NULL, 0,
                    TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s: could not set toe: ret=%d\n",
                   dhd_ifname(&dhd->pub, ifidx), ret));
        return ret;
    }

    return 0;
}
#endif /* TOE */

#if defined(WL_CFG80211) && defined(NUM_SCB_MAX_PROBE)
void dhd_set_scb_probe(dhd_pub_t *dhd)
{
    wl_scb_probe_t scb_probe;
    char iovbuf[WL_EVENTING_MASK_LEN + sizeof(wl_scb_probe_t)];
    int ret;

    if (dhd->op_mode & DHD_FLAG_HOSTAP_MODE) {
        return;
    }

    ret =
        dhd_iovar(dhd, 0, "scb_probe", NULL, 0, iovbuf, sizeof(iovbuf), FALSE);
    if (ret < 0) {
        DHD_ERROR(("%s: GET max_scb_probe failed\n", __FUNCTION__));
    }

    memcpy(&scb_probe, iovbuf, sizeof(wl_scb_probe_t));

    scb_probe.scb_max_probe = NUM_SCB_MAX_PROBE;

    ret = dhd_iovar(dhd, 0, "scb_probe", (char *)&scb_probe,
                    sizeof(wl_scb_probe_t), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s: max_scb_probe setting failed\n", __FUNCTION__));
        return;
    }
}
#endif /* WL_CFG80211 && NUM_SCB_MAX_PROBE */

static void dhd_ethtool_get_drvinfo(struct net_device *net,
                                    struct ethtool_drvinfo *info)
{
    dhd_info_t *dhd = DHD_DEV_INFO(net);

    snprintf(info->driver, sizeof(info->driver), "wl");
    snprintf(info->version, sizeof(info->version), "%lu", dhd->pub.drv_version);
}

struct ethtool_ops dhd_ethtool_ops = {.get_drvinfo = dhd_ethtool_get_drvinfo};

static int dhd_ethtool(dhd_info_t *dhd, void *uaddr)
{
    struct ethtool_drvinfo info;
    char drvname[sizeof(info.driver)];
    uint32 cmd;
#ifdef TOE
    struct ethtool_value edata;
    uint32 toe_cmpnt, csum_dir;
    int ret;
#endif // endif

    DHD_TRACE(("%s: Enter\n", __FUNCTION__));

    /* all ethtool calls start with a cmd word */
    if (copy_from_user(&cmd, uaddr, sizeof(uint32))) {
        return -EFAULT;
    }

    switch (cmd) {
        case ETHTOOL_GDRVINFO:
            /* Copy out any request driver name */
            if (copy_from_user(&info, uaddr, sizeof(info))) {
                return -EFAULT;
            }
            strncpy(drvname, info.driver, sizeof(drvname) - 1);
            drvname[sizeof(drvname) - 1] = '\0';

            /* clear struct for return */
            memset(&info, 0, sizeof(info));
            info.cmd = cmd;

            /* if dhd requested, identify ourselves */
            if (strcmp(drvname, "?dhd") == 0) {
                snprintf(info.driver, sizeof(info.driver), "dhd");
                strncpy(info.version, EPI_VERSION_STR,
                        sizeof(info.version) - 1);
                info.version[sizeof(info.version) - 1] = '\0';
            } else if (!dhd->pub.up) {
                /* otherwise, require dongle to be up */
                DHD_ERROR(("%s: dongle is not up\n", __FUNCTION__));
                return -ENODEV;
            } else if (dhd->pub.iswl) {
                /* finally, report dongle driver type */
                snprintf(info.driver, sizeof(info.driver), "wl");
            } else {
                snprintf(info.driver, sizeof(info.driver), "xx");
            }

            snprintf(info.version, sizeof(info.version), "%lu",
                     dhd->pub.drv_version);
            if (copy_to_user(uaddr, &info, sizeof(info))) {
                return -EFAULT;
            }
            DHD_CTL(("%s: given %*s, returning %s\n", __FUNCTION__,
                     (int)sizeof(drvname), drvname, info.driver));
            break;

#ifdef TOE
        /* Get toe offload components from dongle */
        case ETHTOOL_GRXCSUM:
        case ETHTOOL_GTXCSUM:
            if ((ret = dhd_toe_get(dhd, 0, &toe_cmpnt)) < 0) {
                return ret;
            }

            csum_dir =
                (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;

            edata.cmd = cmd;
            edata.data = (toe_cmpnt & csum_dir) ? 1 : 0;

            if (copy_to_user(uaddr, &edata, sizeof(edata))) {
                return -EFAULT;
            }
            break;

        /* Set toe offload components in dongle */
        case ETHTOOL_SRXCSUM:
        case ETHTOOL_STXCSUM:
            if (copy_from_user(&edata, uaddr, sizeof(edata))) {
                return -EFAULT;
            }

            /* Read the current settings, update and write back */
            if ((ret = dhd_toe_get(dhd, 0, &toe_cmpnt)) < 0) {
                return ret;
            }

            csum_dir =
                (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;

            if (edata.data != 0) {
                toe_cmpnt |= csum_dir;
            } else {
                toe_cmpnt &= ~csum_dir;
            }

            if ((ret = dhd_toe_set(dhd, 0, toe_cmpnt)) < 0) {
                return ret;
            }

            /* If setting TX checksum mode, tell Linux the new mode */
            if (cmd == ETHTOOL_STXCSUM) {
                if (edata.data) {
                    dhd->iflist[0]->net->features |= NETIF_F_IP_CSUM;
                } else {
                    dhd->iflist[0]->net->features &= ~NETIF_F_IP_CSUM;
                }
            }

            break;
#endif /* TOE */

        default:
            return -EOPNOTSUPP;
    }

    return 0;
}

static bool dhd_check_hang(struct net_device *net, dhd_pub_t *dhdp, int error)
{
    if (!dhdp) {
        DHD_ERROR(("%s: dhdp is NULL\n", __FUNCTION__));
        return FALSE;
    }

    if (!dhdp->up) {
        return FALSE;
    }

#if !defined(BCMPCIE) && !defined(BCMDBUS)
    if (dhdp->info->thr_dpc_ctl.thr_pid < 0) {
        DHD_ERROR(
            ("%s : skipped due to negative pid - unloading?\n", __FUNCTION__));
        return FALSE;
    }
#endif /* !BCMPCIE && !BCMDBUS */

    if ((error == -ETIMEDOUT) || (error == -EREMOTEIO) ||
        ((dhdp->busstate == DHD_BUS_DOWN) && (!dhdp->dongle_reset))) {
#ifdef BCMPCIE
        DHD_ERROR(
            ("%s: Event HANG send up due to  re=%d te=%d d3acke=%d e=%d s=%d\n",
             __FUNCTION__, dhdp->rxcnt_timeout, dhdp->txcnt_timeout,
             dhdp->d3ackcnt_timeout, error, dhdp->busstate));
#else
        DHD_ERROR(("%s: Event HANG send up due to  re=%d te=%d e=%d s=%d\n",
                   __FUNCTION__, dhdp->rxcnt_timeout, dhdp->txcnt_timeout,
                   error, dhdp->busstate));
#endif /* BCMPCIE */
        if (dhdp->hang_reason == 0) {
            if (dhdp->dongle_trap_occured) {
                dhdp->hang_reason = HANG_REASON_DONGLE_TRAP;
#ifdef BCMPCIE
            } else if (dhdp->d3ackcnt_timeout) {
                dhdp->hang_reason = dhdp->is_sched_error
                                        ? HANG_REASON_D3_ACK_TIMEOUT_SCHED_ERROR
                                        : HANG_REASON_D3_ACK_TIMEOUT;
#endif /* BCMPCIE */
            } else {
                dhdp->hang_reason =
                    dhdp->is_sched_error
                        ? HANG_REASON_IOCTL_RESP_TIMEOUT_SCHED_ERROR
                        : HANG_REASON_IOCTL_RESP_TIMEOUT;
            }
        }
        printf("%s\n", info_string);
        printf("MAC %pM\n", &dhdp->mac);
        net_os_send_hang_message(net);
        return TRUE;
    }
    return FALSE;
}

#ifdef WL_MONITOR
bool dhd_monitor_enabled(dhd_pub_t *dhd, int ifidx)
{
    return (dhd->info->monitor_type != 0);
}

#ifdef BCMSDIO
static void dhd_rx_mon_pkt_sdio(dhd_pub_t *dhdp, void *pkt, int ifidx)
{
    dhd_info_t *dhd = (dhd_info_t *)dhdp->info;

    if (!dhd->monitor_skb) {
        if ((dhd->monitor_skb = PKTTONATIVE(dhdp->osh, pkt)) == NULL) {
            return;
        }
    }

    if (dhd->monitor_type && dhd->monitor_dev) {
        dhd->monitor_skb->dev = dhd->monitor_dev;
    } else {
        PKTFREE(dhdp->osh, pkt, FALSE);
        dhd->monitor_skb = NULL;
        return;
    }

    dhd->monitor_skb->protocol =
        eth_type_trans(dhd->monitor_skb, dhd->monitor_skb->dev);
    dhd->monitor_len = 0;

    netif_rx_ni(dhd->monitor_skb);

    dhd->monitor_skb = NULL;
}
#elif defined(BCMPCIE)
    void dhd_rx_mon_pkt(dhd_pub_t * dhdp, host_rxbuf_cmpl_t * msg, void *pkt,
                        int ifidx)
    {
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
        {
            uint8 amsdu_flag = (msg->flags & BCMPCIE_PKT_FLAGS_MONITOR_MASK) >>
                               BCMPCIE_PKT_FLAGS_MONITOR_SHIFT;
            switch (amsdu_flag) {
                case BCMPCIE_PKT_FLAGS_MONITOR_NO_AMSDU:
                default:
                    if (!dhd->monitor_skb) {
                        if ((dhd->monitor_skb = PKTTONATIVE(dhdp->osh, pkt)) ==
                            NULL) {
                            return;
                        }
                    }
                    if (dhd->monitor_type && dhd->monitor_dev) {
                        dhd->monitor_skb->dev = dhd->monitor_dev;
                    } else {
                        PKTFREE(dhdp->osh, pkt, FALSE);
                        dhd->monitor_skb = NULL;
                        return;
                    }
                    dhd->monitor_skb->protocol =
                        eth_type_trans(dhd->monitor_skb, dhd->monitor_skb->dev);
                    dhd->monitor_len = 0;
                    break;

                case BCMPCIE_PKT_FLAGS_MONITOR_FIRST_PKT:
                    if (!dhd->monitor_skb) {
                        if ((dhd->monitor_skb =
                                 dev_alloc_skb(MAX_MON_PKT_SIZE)) == NULL) {
                            return;
                        }
                        dhd->monitor_len = 0;
                    }
                    if (dhd->monitor_type && dhd->monitor_dev) {
                        dhd->monitor_skb->dev = dhd->monitor_dev;
                    } else {
                        PKTFREE(dhdp->osh, pkt, FALSE);
                        dev_kfree_skb(dhd->monitor_skb);
                        return;
                    }
                    memcpy(PKTDATA(dhdp->osh, dhd->monitor_skb),
                           PKTDATA(dhdp->osh, pkt), PKTLEN(dhdp->osh, pkt));
                    dhd->monitor_len = PKTLEN(dhdp->osh, pkt);
                    PKTFREE(dhdp->osh, pkt, FALSE);
                    return;

                case BCMPCIE_PKT_FLAGS_MONITOR_INTER_PKT:
                    memcpy(PKTDATA(dhdp->osh, dhd->monitor_skb) +
                               dhd->monitor_len,
                           PKTDATA(dhdp->osh, pkt), PKTLEN(dhdp->osh, pkt));
                    dhd->monitor_len += PKTLEN(dhdp->osh, pkt);
                    PKTFREE(dhdp->osh, pkt, FALSE);
                    return;

                case BCMPCIE_PKT_FLAGS_MONITOR_LAST_PKT:
                    memcpy(PKTDATA(dhdp->osh, dhd->monitor_skb) +
                               dhd->monitor_len,
                           PKTDATA(dhdp->osh, pkt), PKTLEN(dhdp->osh, pkt));
                    dhd->monitor_len += PKTLEN(dhdp->osh, pkt);
                    PKTFREE(dhdp->osh, pkt, FALSE);
                    skb_put(dhd->monitor_skb, dhd->monitor_len);
                    dhd->monitor_skb->protocol =
                        eth_type_trans(dhd->monitor_skb, dhd->monitor_skb->dev);
                    dhd->monitor_len = 0;
                    break;
            }
        }

        if (in_interrupt()) {
            bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE, __FUNCTION__,
                                 __LINE__);
            DHD_PERIM_UNLOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
            netif_rx(dhd->monitor_skb);
            DHD_PERIM_LOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
        } else {
            /* If the receive is not processed inside an ISR,
             * the softirqd must be woken explicitly to service
             * the NET_RX_SOFTIRQ.	In 2.6 kernels, this is handled
             * by netif_rx_ni(), but in earlier kernels, we need
             * to do it manually.
             */
            bcm_object_trace_opr(dhd->monitor_skb, BCM_OBJDBG_REMOVE,
                                 __FUNCTION__, __LINE__);

            DHD_PERIM_UNLOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
            netif_rx_ni(dhd->monitor_skb);
            DHD_PERIM_LOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
        }

        dhd->monitor_skb = NULL;
    }
#endif

typedef struct dhd_mon_dev_priv {
    struct net_device_stats stats;
} dhd_mon_dev_priv_t;

#define DHD_MON_DEV_PRIV_SIZE (sizeof(dhd_mon_dev_priv_t))
#define DHD_MON_DEV_PRIV(dev) ((dhd_mon_dev_priv_t *)DEV_PRIV(dev))
#define DHD_MON_DEV_STATS(dev) (((dhd_mon_dev_priv_t *)DEV_PRIV(dev))->stats)

static int dhd_monitor_start(struct sk_buff *skb, struct net_device *dev)
{
    PKTFREE(NULL, skb, FALSE);
    return 0;
}

#if defined(BT_OVER_SDIO)

void dhdsdio_bus_usr_cnt_inc(dhd_pub_t *dhdp)
{
    dhdp->info->bus_user_count++;
}

void dhdsdio_bus_usr_cnt_dec(dhd_pub_t *dhdp)
{
    dhdp->info->bus_user_count--;
}

/* Return values:
 * Success: Returns 0
 * Failure: Returns -1 or errono code
 */
int dhd_bus_get(wlan_bt_handle_t handle, bus_owner_t owner)
{
    dhd_pub_t *dhdp = (dhd_pub_t *)handle;
    dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
    int ret = 0;

    mutex_lock(&dhd->bus_user_lock);
    ++dhd->bus_user_count;
    if (dhd->bus_user_count < 0) {
        DHD_ERROR(("%s(): bus_user_count is negative, which is invalid\n",
                   __FUNCTION__));
        ret = -1;
        goto exit;
    }

    if (dhd->bus_user_count == 1) {
        dhd->pub.hang_was_sent = 0;

        /* First user, turn on WL_REG, start the bus */
        DHD_ERROR(
            ("%s(): First user Turn On WL_REG & start the bus", __FUNCTION__));
        if (!wifi_platform_set_power(dhd->adapter, TRUE, WIFI_TURNON_DELAY)) {
            /* Enable F1 */
            ret = dhd_bus_resume(dhdp, 0);
            if (ret) {
                DHD_ERROR(
                    ("%s(): Failed to enable F1, err=%d\n", __FUNCTION__, ret));
                goto exit;
            }
        }

        dhd_update_fw_nv_path(dhd);
        /* update firmware and nvram path to sdio bus */
        dhd_bus_update_fw_nv_path(dhd->pub.bus, dhd->fw_path, dhd->nv_path);
        /* download the firmware, Enable F2 */
        /* Should be done only in case of FW switch */
        ret = dhd_bus_devreset(dhdp, FALSE);
        dhd_bus_resume(dhdp, 1);
        if (!ret) {
            if (dhd_sync_with_dongle(&dhd->pub) < 0) {
                DHD_ERROR(("%s(): Sync with dongle failed!!\n", __FUNCTION__));
                ret = -EFAULT;
            }
        } else {
            DHD_ERROR(
                ("%s(): Failed to download, err=%d\n", __FUNCTION__, ret));
        }
    } else {
        DHD_ERROR(
            ("%s(): BUS is already acquired, just increase the count %d \r\n",
             __FUNCTION__, dhd->bus_user_count));
    }
exit:
    mutex_unlock(&dhd->bus_user_lock);
    return ret;
}
EXPORT_SYMBOL(dhd_bus_get);

/* Return values:
 * Success: Returns 0
 * Failure: Returns -1 or errono code
 */
int dhd_bus_put(wlan_bt_handle_t handle, bus_owner_t owner)
{
    dhd_pub_t *dhdp = (dhd_pub_t *)handle;
    dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
    int ret = 0;
    BCM_REFERENCE(owner);

    mutex_lock(&dhd->bus_user_lock);
    --dhd->bus_user_count;
    if (dhd->bus_user_count < 0) {
        DHD_ERROR(("%s(): bus_user_count is negative, which is invalid\n",
                   __FUNCTION__));
        dhd->bus_user_count = 0;
        ret = -1;
        goto exit;
    }

    if (dhd->bus_user_count == 0) {
        /* Last user, stop the bus and turn Off WL_REG */
        DHD_ERROR(("%s(): There are no owners left Trunf Off WL_REG & stop the "
                   "bus \r\n",
                   __FUNCTION__));
#ifdef PROP_TXSTATUS
        if (dhd->pub.wlfc_enabled) {
            dhd_wlfc_deinit(&dhd->pub);
        }
#endif /* PROP_TXSTATUS */
#ifdef PNO_SUPPORT
        if (dhd->pub.pno_state) {
            dhd_pno_deinit(&dhd->pub);
        }
#endif /* PNO_SUPPORT */
#ifdef RTT_SUPPORT
        if (dhd->pub.rtt_state) {
            dhd_rtt_deinit(&dhd->pub);
        }
#endif /* RTT_SUPPORT */
        ret = dhd_bus_devreset(dhdp, TRUE);
        if (!ret) {
            dhd_bus_suspend(dhdp);
            wifi_platform_set_power(dhd->adapter, FALSE, WIFI_TURNOFF_DELAY);
        }
    } else {
        DHD_ERROR(("%s(): Other owners using bus, decrease the count %d \r\n",
                   __FUNCTION__, dhd->bus_user_count));
    }
exit:
    mutex_unlock(&dhd->bus_user_lock);
    return ret;
}
EXPORT_SYMBOL(dhd_bus_put);

int dhd_net_bus_get(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    return dhd_bus_get(&dhd->pub, WLAN_MODULE);
}

int dhd_net_bus_put(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    return dhd_bus_put(&dhd->pub, WLAN_MODULE);
}

/*
 * Function to enable the Bus Clock
 * Returns BCME_OK on success and BCME_xxx on failure
 *
 * This function is not callable from non-sleepable context
 */
int dhd_bus_clk_enable(wlan_bt_handle_t handle, bus_owner_t owner)
{
    dhd_pub_t *dhdp = (dhd_pub_t *)handle;

    int ret;

    dhd_os_sdlock(dhdp);
    /*
     * The second argument is TRUE, that means, we expect
     * the function to "wait" until the clocks are really
     * available
     */
    ret = __dhdsdio_clk_enable(dhdp->bus, owner, TRUE);
    dhd_os_sdunlock(dhdp);

    return ret;
}
EXPORT_SYMBOL(dhd_bus_clk_enable);

/*
 * Function to disable the Bus Clock
 * Returns BCME_OK on success and BCME_xxx on failure
 *
 * This function is not callable from non-sleepable context
 */
int dhd_bus_clk_disable(wlan_bt_handle_t handle, bus_owner_t owner)
{
    dhd_pub_t *dhdp = (dhd_pub_t *)handle;

    int ret;

    dhd_os_sdlock(dhdp);
    /*
     * The second argument is TRUE, that means, we expect
     * the function to "wait" until the clocks are really
     * disabled
     */
    ret = __dhdsdio_clk_disable(dhdp->bus, owner, TRUE);
    dhd_os_sdunlock(dhdp);

    return ret;
}
EXPORT_SYMBOL(dhd_bus_clk_disable);

/*
 * Function to reset bt_use_count counter to zero.
 *
 * This function is not callable from non-sleepable context
 */
void dhd_bus_reset_bt_use_count(wlan_bt_handle_t handle)
{
    dhd_pub_t *dhdp = (dhd_pub_t *)handle;

    /* take the lock and reset bt use count */
    dhd_os_sdlock(dhdp);
    dhdsdio_reset_bt_use_count(dhdp->bus);
    dhd_os_sdunlock(dhdp);
}
EXPORT_SYMBOL(dhd_bus_reset_bt_use_count);

void dhd_bus_retry_hang_recovery(wlan_bt_handle_t handle)
{
    dhd_pub_t *dhdp = (dhd_pub_t *)handle;
    dhd_info_t *dhd = (dhd_info_t *)dhdp->info;

    dhdp->hang_was_sent = 0;

    dhd_os_send_hang_message(&dhd->pub);
}
EXPORT_SYMBOL(dhd_bus_retry_hang_recovery);

#endif /* BT_OVER_SDIO */

static int dhd_monitor_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
    return 0;
}

static struct net_device_stats *dhd_monitor_get_stats(struct net_device *dev)
{
    return &DHD_MON_DEV_STATS(dev);
}

static const struct net_device_ops netdev_monitor_ops = {
    .ndo_start_xmit = dhd_monitor_start,
    .ndo_get_stats = dhd_monitor_get_stats,
    .ndo_do_ioctl = dhd_monitor_ioctl};

static void dhd_add_monitor_if(dhd_info_t *dhd)
{
    struct net_device *dev;
    char *devname;
    uint32 scan_suppress = FALSE;
    int ret = BCME_OK;

    if (!dhd) {
        DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
        return;
    }

    if (dhd->monitor_dev) {
        DHD_ERROR(("%s: monitor i/f already exists", __FUNCTION__));
        return;
    }

    dev = alloc_etherdev(DHD_MON_DEV_PRIV_SIZE);
    if (!dev) {
        DHD_ERROR(("%s: alloc wlif failed\n", __FUNCTION__));
        return;
    }

    devname = "radiotap";

    snprintf(dev->name, sizeof(dev->name), "%s%u", devname, dhd->unit);

#ifndef ARPHRD_IEEE80211_PRISM /* From Linux 2.4.18 */
#define ARPHRD_IEEE80211_PRISM 802
#endif // endif

#ifndef ARPHRD_IEEE80211_RADIOTAP
#define ARPHRD_IEEE80211_RADIOTAP 803 /* IEEE 802.11 + radiotap header */
#endif                                /* ARPHRD_IEEE80211_RADIOTAP */

    dev->type = ARPHRD_IEEE80211_RADIOTAP;

    dev->netdev_ops = &netdev_monitor_ops;

    if (register_netdevice(dev)) {
        DHD_ERROR(
            ("%s, register_netdev failed for %s\n", __FUNCTION__, dev->name));
        free_netdev(dev);
        return;
    }

    if (FW_SUPPORTED((&dhd->pub), monitor)) {
        scan_suppress = TRUE;
        /* Set the SCAN SUPPRESS Flag in the firmware to disable scan in Monitor
         * mode */
        ret = dhd_iovar(&dhd->pub, 0, "scansuppress", (char *)&scan_suppress,
                        sizeof(scan_suppress), NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(
                ("%s: scansuppress set failed, ret=%d\n", __FUNCTION__, ret));
        }
    }

    dhd->monitor_dev = dev;
}

static void dhd_del_monitor_if(dhd_info_t *dhd)
{
    int ret = BCME_OK;
    uint32 scan_suppress = FALSE;

    if (!dhd) {
        DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
        return;
    }

    if (!dhd->monitor_dev) {
        DHD_ERROR(("%s: monitor i/f doesn't exist", __FUNCTION__));
        return;
    }

    if (FW_SUPPORTED((&dhd->pub), monitor)) {
        scan_suppress = FALSE;
        /* Unset the SCAN SUPPRESS Flag in the firmware to enable scan */
        ret = dhd_iovar(&dhd->pub, 0, "scansuppress", (char *)&scan_suppress,
                        sizeof(scan_suppress), NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(
                ("%s: scansuppress set failed, ret=%d\n", __FUNCTION__, ret));
        }
    }

    if (dhd->monitor_dev) {
        if (dhd->monitor_dev->reg_state == NETREG_UNINITIALIZED) {
            free_netdev(dhd->monitor_dev);
        } else {
            unregister_netdevice(dhd->monitor_dev);
        }
        dhd->monitor_dev = NULL;
    }
}

void dhd_set_monitor(dhd_pub_t *pub, int ifidx, int val)
{
    dhd_info_t *dhd = pub->info;

    DHD_TRACE(("%s: val %d\n", __FUNCTION__, val));

    dhd_net_if_lock_local(dhd);
    if (!val) {
        /* Delete monitor */
        dhd_del_monitor_if(dhd);
    } else {
        /* Add monitor */
        dhd_add_monitor_if(dhd);
    }
    dhd->monitor_type = val;
    dhd_net_if_unlock_local(dhd);
}
#endif /* WL_MONITOR */

#if defined(DHD_H2D_LOG_TIME_SYNC)
/*
 * Helper function:
 * Used for RTE console message time syncing with Host printk
 */
void dhd_h2d_log_time_sync_deferred_wq_schedule(dhd_pub_t *dhdp)
{
    dhd_info_t *info = dhdp->info;

    /* Ideally the "state" should be always TRUE */
    dhd_deferred_schedule_work(
        info->dhd_deferred_wq, NULL, DHD_WQ_WORK_H2D_CONSOLE_TIME_STAMP_MATCH,
        dhd_deferred_work_rte_log_time_sync, DHD_WQ_WORK_PRIORITY_LOW);
}

void dhd_deferred_work_rte_log_time_sync(void *handle, void *event_info,
                                         u8 event)
{
    dhd_info_t *dhd_info = handle;
    dhd_pub_t *dhd;

    if (event != DHD_WQ_WORK_H2D_CONSOLE_TIME_STAMP_MATCH) {
        DHD_ERROR(("%s: unexpected event \n", __FUNCTION__));
        return;
    }

    if (!dhd_info) {
        DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
        return;
    }

    dhd = &dhd_info->pub;

    /*
     * Function to send IOVAR for console timesyncing
     * between Host and Dongle.
     * If the IOVAR fails,
     * 1. dhd_rte_time_sync_ms is set to 0 and
     * 2. HOST Dongle console time sync will *not* happen.
     */
    dhd_h2d_log_time_sync(dhd);
}
#endif /* DHD_H2D_LOG_TIME_SYNC */

int dhd_ioctl_process(dhd_pub_t *pub, int ifidx, dhd_ioctl_t *ioc,
                      void *data_buf)
{
    int bcmerror = BCME_OK;
    int buflen = 0;
    struct net_device *net;

    net = dhd_idx2net(pub, ifidx);
    if (!net) {
        bcmerror = BCME_BADARG;
        /*
         * The netdev pointer is bad means the DHD can't communicate
         * to higher layers, so just return from here
         */
        return bcmerror;
    }

    /* check for local dhd ioctl and handle it */
    if (ioc->driver == DHD_IOCTL_MAGIC) {
        /* This is a DHD IOVAR, truncate buflen to DHD_IOCTL_MAXLEN */
        if (data_buf) {
            buflen = MIN(ioc->len, DHD_IOCTL_MAXLEN);
        }
        bcmerror = dhd_ioctl((void *)pub, ioc, data_buf, buflen);
        if (bcmerror) {
            pub->bcmerror = bcmerror;
        }
        goto done;
    }

    /* This is a WL IOVAR, truncate buflen to WLC_IOCTL_MAXLEN */
    if (data_buf) {
        buflen = MIN(ioc->len, WLC_IOCTL_MAXLEN);
    }

#ifndef BCMDBUS
    /* send to dongle (must be up, and wl). */
    if (pub->busstate == DHD_BUS_DOWN || pub->busstate == DHD_BUS_LOAD) {
        if ((!pub->dongle_trap_occured) && allow_delay_fwdl) {
            int ret;
            if (atomic_read(&exit_in_progress)) {
                DHD_ERROR(("%s module exit in progress\n", __func__));
                bcmerror = BCME_DONGLE_DOWN;
                goto done;
            }
            ret = dhd_bus_start(pub);
            if (ret != 0) {
                DHD_ERROR(("%s: failed with code %d\n", __FUNCTION__, ret));
                bcmerror = BCME_DONGLE_DOWN;
                goto done;
            }
        } else {
            bcmerror = BCME_DONGLE_DOWN;
            goto done;
        }
    }

    if (!pub->iswl) {
        bcmerror = BCME_DONGLE_DOWN;
        goto done;
    }
#endif /* !BCMDBUS */

    /*
     * Flush the TX queue if required for proper message serialization:
     * Intercept WLC_SET_KEY IOCTL - serialize M4 send and set key IOCTL to
     * prevent M4 encryption and
     * intercept WLC_DISASSOC IOCTL - serialize WPS-DONE and WLC_DISASSOC IOCTL
     * to prevent disassoc frame being sent before WPS-DONE frame.
     */
    if (ioc->cmd == WLC_SET_KEY ||
        (ioc->cmd == WLC_SET_VAR && data_buf != NULL &&
         strncmp("wsec_key", data_buf, 0x9) == 0) ||
        (ioc->cmd == WLC_SET_VAR && data_buf != NULL &&
         strncmp("bsscfg:wsec_key", data_buf, 0xF) == 0) ||
        ioc->cmd == WLC_DISASSOC) {
        dhd_wait_pend8021x(net);
    }

    if ((ioc->cmd == WLC_SET_VAR || ioc->cmd == WLC_GET_VAR) &&
        data_buf != NULL && strncmp("rpc_", data_buf, 0x4) == 0) {
        bcmerror = BCME_UNSUPPORTED;
        goto done;
    }

    bcmerror = dhd_wl_ioctl(pub, ifidx, (wl_ioctl_t *)ioc, data_buf, buflen);

done:
    dhd_check_hang(net, pub, bcmerror);

    return bcmerror;
}

/**
 * Called by the OS (optionally via a wrapper function).
 * @param net  Linux per dongle instance
 * @param ifr  Linux request structure
 * @param cmd  e.g. SIOCETHTOOL
 */
static int dhd_ioctl_entry(struct net_device *net, struct ifreq *ifr,
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
                           void __user *data,
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(5, 15, 0) */
                           int cmd)
{
    dhd_info_t *dhd = DHD_DEV_INFO(net);
    dhd_ioctl_t ioc;
    int bcmerror = 0;
    int ifidx;
    int ret;
    void *local_buf = NULL;           /**< buffer in kernel space */
    void __user *ioc_buf_user = NULL; /**< buffer in user space */
    u16 buflen = 0;

    if (atomic_read(&exit_in_progress)) {
        DHD_ERROR(("%s module exit in progress\n", __func__));
        bcmerror = BCME_DONGLE_DOWN;
        return OSL_ERROR(bcmerror);
    }

    DHD_OS_WAKE_LOCK(&dhd->pub);
    DHD_PERIM_LOCK(&dhd->pub);

    /* Interface up check for built-in type */
    if (!dhd_download_fw_on_driverload && dhd->pub.up == FALSE) {
        DHD_ERROR(("%s: Interface is down \n", __FUNCTION__));
        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        return OSL_ERROR(BCME_NOTUP);
    }

    ifidx = dhd_net2idx(dhd, net);
    DHD_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __FUNCTION__, ifidx, cmd));

#if defined(WL_STATIC_IF)
    /* skip for static ndev when it is down */
    if (dhd_is_static_ndev(&dhd->pub, net) && !(net->flags & IFF_UP)) {
        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        return -1;
    }
#endif /* WL_STATIC_iF */

    if (ifidx == DHD_BAD_IF) {
        DHD_ERROR(("%s: BAD IF\n", __FUNCTION__));
        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        return -1;
    }

#if defined(WL_WIRELESS_EXT)
    /* linux wireless extensions */
    if ((cmd >= SIOCIWFIRST) && (cmd <= SIOCIWLAST)) {
        /* may recurse, do NOT lock */
        ret = wl_iw_ioctl(net, ifr, cmd);
        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        return ret;
    }
#endif /* defined(WL_WIRELESS_EXT) */

    if (cmd == SIOCETHTOOL) {
        ret = dhd_ethtool(dhd, (void *)ifr->ifr_data);
        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        return ret;
    }

    if (cmd == SIOCDEVPRIVATE + 1) {
        ret = wl_ohos_priv_cmd(net, ifr);
        dhd_check_hang(net, &dhd->pub, ret);
        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        return ret;
    }

    if (cmd != SIOCDEVPRIVATE) {
        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        return -EOPNOTSUPP;
    }

    memset(&ioc, 0, sizeof(ioc));

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
    /* Copy the ioc control structure part of ioctl request */
    if (copy_from_user(&ioc, data, sizeof(wl_ioctl_t))) {
        bcmerror = BCME_BADADDR;
        goto done;
    }
    /* To differentiate between wl and dhd read 4 more byes */
    if ((copy_from_user(&ioc.driver, (char *)data + sizeof(wl_ioctl_t),
                        sizeof(uint)) != 0)) {
        bcmerror = BCME_BADADDR;
        goto done;
    }
#else
#ifdef CONFIG_COMPAT
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 6, 0))
    if (in_compat_syscall())
#else
    if (is_compat_task())
#endif /* LINUX_VER >= 4.6 */
    {
        compat_wl_ioctl_t compat_ioc;
        if (copy_from_user(&compat_ioc, ifr->ifr_data,
                           sizeof(compat_wl_ioctl_t))) {
            bcmerror = BCME_BADADDR;
            goto done;
        }
        ioc.cmd = compat_ioc.cmd;
        if (ioc.cmd & WLC_SPEC_FLAG) {
            memset(&ioc, 0, sizeof(ioc));
            /* Copy the ioc control structure part of ioctl request */
            if (copy_from_user(&ioc, ifr->ifr_data, sizeof(wl_ioctl_t))) {
                bcmerror = BCME_BADADDR;
                goto done;
            }
            ioc.cmd &= ~WLC_SPEC_FLAG; /* Clear the FLAG */

            /* To differentiate between wl and dhd read 4 more byes */
            if ((copy_from_user(&ioc.driver,
                                (char *)ifr->ifr_data + sizeof(wl_ioctl_t),
                                sizeof(uint)) != 0)) {
                bcmerror = BCME_BADADDR;
                goto done;
            }

        } else { /* ioc.cmd & WLC_SPEC_FLAG */
            ioc.buf = compat_ptr(compat_ioc.buf);
            ioc.len = compat_ioc.len;
            ioc.set = compat_ioc.set;
            ioc.used = compat_ioc.used;
            ioc.needed = compat_ioc.needed;
            /* To differentiate between wl and dhd read 4 more byes */
            if ((copy_from_user(&ioc.driver,
                                (char *)ifr->ifr_data +
                                    sizeof(compat_wl_ioctl_t),
                                sizeof(uint)) != 0)) {
                bcmerror = BCME_BADADDR;
                goto done;
            }
        } /* ioc.cmd & WLC_SPEC_FLAG */
    } else
#endif /* CONFIG_COMPAT */
    {
        /* Copy the ioc control structure part of ioctl request */
        if (copy_from_user(&ioc, ifr->ifr_data, sizeof(wl_ioctl_t))) {
            bcmerror = BCME_BADADDR;
            goto done;
        }
#ifdef CONFIG_COMPAT
        ioc.cmd &= ~WLC_SPEC_FLAG; /* make sure it was clear when it isn't a
                                      compat task */
#endif

        /* To differentiate between wl and dhd read 4 more byes */
        if ((copy_from_user(&ioc.driver,
                            (char *)ifr->ifr_data + sizeof(wl_ioctl_t),
                            sizeof(uint)) != 0)) {
            bcmerror = BCME_BADADDR;
            goto done;
        }
    }
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(5, 15, 0) */

    if (!capable(CAP_NET_ADMIN)) {
        bcmerror = BCME_EPERM;
        goto done;
    }

    /* Take backup of ioc.buf and restore later */
    ioc_buf_user = ioc.buf;

    if (ioc.len > 0) {
        buflen = MIN(ioc.len, DHD_IOCTL_MAXLEN);
        if (!(local_buf = MALLOC(dhd->pub.osh, buflen + 1))) {
            bcmerror = BCME_NOMEM;
            goto done;
        }

        DHD_PERIM_UNLOCK(&dhd->pub);
        if (copy_from_user(local_buf, ioc.buf, buflen)) {
            DHD_PERIM_LOCK(&dhd->pub);
            bcmerror = BCME_BADADDR;
            goto done;
        }
        DHD_PERIM_LOCK(&dhd->pub);

        *((char *)local_buf + buflen) = '\0';

        /* For some platforms accessing userspace memory
         * of ioc.buf is causing kernel panic, so to avoid that
         * make ioc.buf pointing to kernel space memory local_buf
         */
        ioc.buf = local_buf;
    }

    /* Skip all the non DHD iovars (wl iovars) after f/w hang */
    if (ioc.driver != DHD_IOCTL_MAGIC && dhd->pub.hang_was_sent) {
        DHD_TRACE(("%s: HANG was sent up earlier\n", __FUNCTION__));
        DHD_OS_WAKE_LOCK_CTRL_TIMEOUT_ENABLE(&dhd->pub, DHD_EVENT_TIMEOUT_MS);
        bcmerror = BCME_DONGLE_DOWN;
        goto done;
    }

    bcmerror = dhd_ioctl_process(&dhd->pub, ifidx, &ioc, local_buf);

    /* Restore back userspace pointer to ioc.buf */
    ioc.buf = ioc_buf_user;

    if (!bcmerror && buflen && local_buf && ioc.buf) {
        DHD_PERIM_UNLOCK(&dhd->pub);
        if (copy_to_user(ioc.buf, local_buf, buflen)) {
            bcmerror = -EFAULT;
        }
        DHD_PERIM_LOCK(&dhd->pub);
    }

done:
    if (local_buf) {
        MFREE(dhd->pub.osh, local_buf, buflen + 1);
    }

    DHD_PERIM_UNLOCK(&dhd->pub);
    DHD_OS_WAKE_UNLOCK(&dhd->pub);

    return OSL_ERROR(bcmerror);
}

#if defined(WL_CFG80211) && defined(SUPPORT_DEEP_SLEEP)
/* Flags to indicate if we distingish power off policy when
 * user set the memu "Keep Wi-Fi on during sleep" to "Never"
 */
int trigger_deep_sleep = 0;
#endif /* WL_CFG80211 && SUPPORT_DEEP_SLEEP */

#ifdef FIX_CPU_MIN_CLOCK
static int dhd_init_cpufreq_fix(dhd_info_t *dhd)
{
    if (dhd) {
        mutex_init(&dhd->cpufreq_fix);
        dhd->cpufreq_fix_status = FALSE;
    }
    return 0;
}

static void dhd_fix_cpu_freq(dhd_info_t *dhd)
{
    mutex_lock(&dhd->cpufreq_fix);
    if (dhd && !dhd->cpufreq_fix_status) {
        pm_qos_add_request(&dhd->dhd_cpu_qos, PM_QOS_CPU_FREQ_MIN, 0x493E0);
#ifdef FIX_BUS_MIN_CLOCK
        pm_qos_add_request(&dhd->dhd_bus_qos, PM_QOS_BUS_THROUGHPUT, 0x7A120);
#endif /* FIX_BUS_MIN_CLOCK */
        DHD_ERROR(("pm_qos_add_requests called\n"));

        dhd->cpufreq_fix_status = TRUE;
    }
    mutex_unlock(&dhd->cpufreq_fix);
}

static void dhd_rollback_cpu_freq(dhd_info_t *dhd)
{
    mutex_lock(&dhd->cpufreq_fix);
    if (dhd && dhd->cpufreq_fix_status != TRUE) {
        mutex_unlock(&dhd->cpufreq_fix);
        return;
    }

    pm_qos_remove_request(&dhd->dhd_cpu_qos);
#ifdef FIX_BUS_MIN_CLOCK
    pm_qos_remove_request(&dhd->dhd_bus_qos);
#endif /* FIX_BUS_MIN_CLOCK */
    DHD_ERROR(("pm_qos_add_requests called\n"));

    dhd->cpufreq_fix_status = FALSE;
    mutex_unlock(&dhd->cpufreq_fix);
}
#endif /* FIX_CPU_MIN_CLOCK */

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
static int dhd_ioctl_entry_wrapper(struct net_device *net, struct ifreq *ifr,
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
                                   void __user *data,
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(5, 15, 0) */
                                   int cmd)
{
    int error;
    dhd_info_t *dhd = DHD_DEV_INFO(net);

    if (atomic_read(&dhd->pub.block_bus)) {
        return -EHOSTDOWN;
    }

    if (pm_runtime_get_sync(dhd_bus_to_dev(dhd->pub.bus)) < 0) {
        return BCME_ERROR;
    }

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
    error = dhd_ioctl_entry(net, ifr, data, cmd);
#else
        error = dhd_ioctl_entry(net, ifr, cmd);
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(5, 15, 0) */

    pm_runtime_mark_last_busy(dhd_bus_to_dev(dhd->pub.bus));
    pm_runtime_put_autosuspend(dhd_bus_to_dev(dhd->pub.bus));

    return error;
}
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

static int dhd_stop(struct net_device *net)
{
    int ifidx = 0;
    bool skip_reset = false;
#if defined(WL_CFG80211)
    unsigned long flags = 0;
#ifdef WL_STATIC_IF
    struct bcm_cfg80211 *cfg = wl_get_cfg(net);
#endif /* WL_STATIC_IF */
#endif /* WL_CFG80211 */
    dhd_info_t *dhd = DHD_DEV_INFO(net);
    DHD_OS_WAKE_LOCK(&dhd->pub);
    DHD_PERIM_LOCK(&dhd->pub);
    WL_MSG(net->name, "Enter\n");
    dhd->pub.rxcnt_timeout = 0;
    dhd->pub.txcnt_timeout = 0;

#ifdef BCMPCIE
    dhd->pub.d3ackcnt_timeout = 0;
#endif /* BCMPCIE */

    mutex_lock(&dhd->pub.ndev_op_sync);

    if (dhd->pub.up == 0) {
        goto exit;
    }

    dhd_if_flush_sta(DHD_DEV_IFP(net));

#ifdef FIX_CPU_MIN_CLOCK
    if (dhd_get_fw_mode(dhd) == DHD_FLAG_HOSTAP_MODE) {
        dhd_rollback_cpu_freq(dhd);
    }
#endif /* FIX_CPU_MIN_CLOCK */

    ifidx = dhd_net2idx(dhd, net);
    BCM_REFERENCE(ifidx);

    DHD_ERROR(("%s: ######### dhd_stop called for ifidx=%d #########\n",
               __FUNCTION__, ifidx));

#if defined(WL_STATIC_IF) && defined(WL_CFG80211)
    /* If static if is operational, don't reset the chip */
    if (wl_cfg80211_static_if_active(cfg)) {
        WL_MSG(net->name, "static if operational. skip chip reset.\n");
        skip_reset = true;
        wl_cfg80211_sta_ifdown(net);
        goto exit;
    }
#endif /* WL_STATIC_IF && WL_CFG80211 */
#ifdef DHD_NOTIFY_MAC_CHANGED
    if (dhd->pub.skip_dhd_stop) {
        WL_MSG(net->name, "skip chip reset.\n");
        skip_reset = true;
#if defined(WL_CFG80211)
        wl_cfg80211_sta_ifdown(net);
#endif /* WL_CFG80211 */
        goto exit;
    }
#endif /* DHD_NOTIFY_MAC_CHANGED */

    DHD_ERROR(("%s: making dhdpub up FALSE\n", __FUNCTION__));
#ifdef WL_CFG80211

    /* Disable Runtime PM before interface down */
    DHD_DISABLE_RUNTIME_PM(&dhd->pub);

    spin_lock_irqsave(&dhd->pub.up_lock, flags);
    dhd->pub.up = 0;
    spin_unlock_irqrestore(&dhd->pub.up_lock, flags);
#else
    dhd->pub.up = 0;
#endif /* WL_CFG80211 */

#ifdef WL_CFG80211
    if (ifidx == 0) {
        dhd_if_t *ifp;
        wl_cfg80211_down(net);

        ifp = dhd->iflist[0];
        /*
         * For CFG80211: Clean up all the left over virtual interfaces
         * when the primary Interface is brought down. [ifconfig wlan0 down]
         */
        if (!dhd_download_fw_on_driverload) {
            DHD_STATLOG_CTRL(&dhd->pub, ST(WLAN_POWER_OFF), ifidx, 0);
            if ((dhd->dhd_state & DHD_ATTACH_STATE_ADD_IF) &&
                (dhd->dhd_state & DHD_ATTACH_STATE_CFG80211)) {
                int i;
#ifdef WL_CFG80211_P2P_DEV_IF
                wl_cfg80211_del_p2p_wdev(net);
#endif /* WL_CFG80211_P2P_DEV_IF */
#ifdef DHD_4WAYM4_FAIL_DISCONNECT
                dhd_cleanup_m4_state_work(&dhd->pub, ifidx);
#endif /* DHD_4WAYM4_FAIL_DISCONNECT */
#ifdef DHD_PKTDUMP_ROAM
                dhd_dump_pkt_clear(&dhd->pub);
#endif /* DHD_PKTDUMP_ROAM */

                dhd_net_if_lock_local(dhd);
                for (i = 1; i < DHD_MAX_IFS; i++) {
                    dhd_remove_if(&dhd->pub, i, FALSE);
                }

                if (ifp && ifp->net) {
                    dhd_if_del_sta_list(ifp);
                }
#ifdef ARP_OFFLOAD_SUPPORT
                if (dhd_inetaddr_notifier_registered) {
                    dhd_inetaddr_notifier_registered = FALSE;
                    unregister_inetaddr_notifier(&dhd_inetaddr_notifier);
                }
#endif /* ARP_OFFLOAD_SUPPORT */
#if defined(CONFIG_IPV6) && defined(IPV6_NDO_SUPPORT)
                if (dhd_inet6addr_notifier_registered) {
                    dhd_inet6addr_notifier_registered = FALSE;
                    unregister_inet6addr_notifier(&dhd_inet6addr_notifier);
                }
#endif /* CONFIG_IPV6 && IPV6_NDO_SUPPORT */
                dhd_net_if_unlock_local(dhd);
            }

#ifdef SHOW_LOGTRACE
            /* Wait till event logs work/kthread finishes */
            dhd_cancel_logtrace_process_sync(dhd);
#endif /* SHOW_LOGTRACE */

#if defined(DHD_LB_RXP)
            __skb_queue_purge(&dhd->rx_pend_queue);
#endif /* DHD_LB_RXP */

#if defined(DHD_LB_TXP)
            skb_queue_purge(&dhd->tx_pend_queue);
#endif /* DHD_LB_TXP */
        }

#if defined(ARGOS_NOTIFY_CB)
        argos_register_notifier_deinit();
#endif // endif
#ifdef DHDTCPACK_SUPPRESS
        dhd_tcpack_suppress_set(&dhd->pub, TCPACK_SUP_OFF);
#endif /* DHDTCPACK_SUPPRESS */
#if defined(DHD_LB_RXP)
        if (ifp && ifp->net == dhd->rx_napi_netdev) {
            DHD_INFO(("%s napi<%p> disabled ifp->net<%p,%s>\n", __FUNCTION__,
                      &dhd->rx_napi_struct, net, net->name));
            skb_queue_purge(&dhd->rx_napi_queue);
            napi_disable(&dhd->rx_napi_struct);
            netif_napi_del(&dhd->rx_napi_struct);
            dhd->rx_napi_netdev = NULL;
        }
#endif /* DHD_LB_RXP */
    }
#endif /* WL_CFG80211 */

    DHD_SSSR_DUMP_DEINIT(&dhd->pub);

#ifdef PROP_TXSTATUS
    dhd_wlfc_cleanup(&dhd->pub, NULL, 0);
#endif // endif
#ifdef SHOW_LOGTRACE
    if (!dhd_download_fw_on_driverload) {
        /* Release the skbs from queue for WLC_E_TRACE event */
        dhd_event_logtrace_flush_queue(&dhd->pub);
        if (dhd->dhd_state & DHD_ATTACH_LOGTRACE_INIT) {
            if (dhd->event_data.fmts) {
                MFREE(dhd->pub.osh, dhd->event_data.fmts,
                      dhd->event_data.fmts_size);
                dhd->event_data.fmts = NULL;
            }
            if (dhd->event_data.raw_fmts) {
                MFREE(dhd->pub.osh, dhd->event_data.raw_fmts,
                      dhd->event_data.raw_fmts_size);
                dhd->event_data.raw_fmts = NULL;
            }
            if (dhd->event_data.raw_sstr) {
                MFREE(dhd->pub.osh, dhd->event_data.raw_sstr,
                      dhd->event_data.raw_sstr_size);
                dhd->event_data.raw_sstr = NULL;
            }
            if (dhd->event_data.rom_raw_sstr) {
                MFREE(dhd->pub.osh, dhd->event_data.rom_raw_sstr,
                      dhd->event_data.rom_raw_sstr_size);
                dhd->event_data.rom_raw_sstr = NULL;
            }
            dhd->dhd_state &= ~DHD_ATTACH_LOGTRACE_INIT;
        }
    }
#endif /* SHOW_LOGTRACE */
#ifdef APF
    dhd_dev_apf_delete_filter(net);
#endif /* APF */

    /* Stop the protocol module */
    dhd_prot_stop(&dhd->pub);

    OLD_MOD_DEC_USE_COUNT;
exit:
    if (skip_reset == false) {
#ifdef WL_ESCAN
        if (ifidx == 0) {
            wl_escan_down(net);
        }
#endif /* WL_ESCAN */
        if (ifidx == 0 && !dhd_download_fw_on_driverload) {
#if defined(BT_OVER_SDIO)
            dhd_bus_put(&dhd->pub, WLAN_MODULE);
            wl_ohos_set_wifi_on_flag(FALSE);
#else
            wl_ohos_wifi_off(net, TRUE);
#ifdef WL_EXT_IAPSTA
            wl_ext_iapsta_dettach_netdev(net, ifidx);
#endif /* WL_EXT_IAPSTA */
#ifdef WL_ESCAN
            wl_escan_event_dettach(net, ifidx);
#endif /* WL_ESCAN */
#ifdef WL_EVENT
            wl_ext_event_dettach_netdev(net, ifidx);
#endif /* WL_EVENT */
#endif /* BT_OVER_SDIO */
        }
#ifdef SUPPORT_DEEP_SLEEP
        else {
            /* CSP#505233: Flags to indicate if we distingish
             * power off policy when user set the memu
             * "Keep Wi-Fi on during sleep" to "Never"
             */
            if (trigger_deep_sleep) {
                dhd_deepsleep(net, 1);
                trigger_deep_sleep = 0;
            }
        }
#endif /* SUPPORT_DEEP_SLEEP */
        dhd->pub.hang_was_sent = 0;
        dhd->pub.hang_was_pending = 0;

        /* Clear country spec for for built-in type driver */
        if (!dhd_download_fw_on_driverload) {
            dhd->pub.dhd_cspec.country_abbrev[0] = 0x00;
            dhd->pub.dhd_cspec.rev = 0;
            dhd->pub.dhd_cspec.ccode[0] = 0x00;
        }

#ifdef BCMDBGFS
        dhd_dbgfs_remove();
#endif // endif
    }

    DHD_PERIM_UNLOCK(&dhd->pub);
    DHD_OS_WAKE_UNLOCK(&dhd->pub);

    /* Destroy wakelock */
    if (!dhd_download_fw_on_driverload &&
        (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT) &&
        (skip_reset == false)) {
        DHD_OS_WAKE_LOCK_DESTROY(dhd);
        dhd->dhd_state &= ~DHD_ATTACH_STATE_WAKELOCKS_INIT;
    }
    WL_MSG(net->name, "Exit\n");

    mutex_unlock(&dhd->pub.ndev_op_sync);
    return 0;
}

#if defined(WL_CFG80211) &&                                                    \
    (defined(USE_INITIAL_2G_SCAN) || defined(USE_INITIAL_SHORT_DWELL_TIME))
extern bool g_first_broadcast_scan;
#endif /* WL_CFG80211 && (USE_INITIAL_2G_SCAN ||                \
          USE_INITIAL_SHORT_DWELL_TIME) */

#ifdef WL11U
static int dhd_interworking_enable(dhd_pub_t *dhd)
{
    uint32 enable = true;
    int ret = BCME_OK;

    ret = dhd_iovar(dhd, 0, "interworking", (char *)&enable, sizeof(enable),
                    NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(
            ("%s: enableing interworking failed, ret=%d\n", __FUNCTION__, ret));
    }

    return ret;
}
#endif /* WL11u */

static int dhd_open(struct net_device *net)
{
    dhd_info_t *dhd = DHD_DEV_INFO(net);
#ifdef TOE
    uint32 toe_ol;
#endif // endif
    int ifidx;
    int32 ret = 0;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
#if defined(OOB_INTR_ONLY)
    uint32 bus_type = -1;
    uint32 bus_num = -1;
    uint32 slot_num = -1;
    wifi_adapter_info_t *adapter = NULL;
#endif
#endif /* LINUX_VERSION >= KERNEL_VERSION(2, 6, 35)  */
#if defined(WL_EXT_IAPSTA) && defined(ISAM_PREINIT)
    int bytes_written = 0;
#endif
#ifdef SCAN_SUPPRESS
    struct wl_apsta_params *apsta_params =
        (struct wl_apsta_params *)dhd->pub.iapsta_params;
#endif

    mutex_lock(&dhd->pub.ndev_op_sync);

#ifdef SCAN_SUPPRESS
    apsta_params->scan_busy_cnt = 0;
#endif

    if (dhd->pub.up == 1) {
        /* already up */
        WL_MSG(net->name, "Primary net_device is already up\n");
        mutex_unlock(&dhd->pub.ndev_op_sync);
        return BCME_OK;
    }

    if (!dhd_download_fw_on_driverload) {
        if (!dhd_driver_init_done) {
            DHD_ERROR(("%s: WLAN driver is not initialized\n", __FUNCTION__));
            mutex_unlock(&dhd->pub.ndev_op_sync);
            return -1;
        }
    }

    WL_MSG(net->name, "Enter\n");
    DHD_ERROR(("%s\n", dhd_version));
    /* Init wakelock */
    if (!dhd_download_fw_on_driverload) {
        if (!(dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
            DHD_OS_WAKE_LOCK_INIT(dhd);
            dhd->dhd_state |= DHD_ATTACH_STATE_WAKELOCKS_INIT;
        }

#ifdef SHOW_LOGTRACE
        skb_queue_head_init(&dhd->evt_trace_queue);

        if (!(dhd->dhd_state & DHD_ATTACH_LOGTRACE_INIT)) {
            ret = dhd_init_logstrs_array(dhd->pub.osh, &dhd->event_data);
            if (ret == BCME_OK) {
                dhd_init_static_strs_array(dhd->pub.osh, &dhd->event_data,
                                           st_str_file_path, map_file_path);
                dhd_init_static_strs_array(dhd->pub.osh, &dhd->event_data,
                                           rom_st_str_file_path,
                                           rom_map_file_path);
                dhd->dhd_state |= DHD_ATTACH_LOGTRACE_INIT;
            }
        }
#endif /* SHOW_LOGTRACE */
    }

    DHD_OS_WAKE_LOCK(&dhd->pub);
    DHD_PERIM_LOCK(&dhd->pub);
    dhd->pub.dongle_trap_occured = 0;
    dhd->pub.hang_was_sent = 0;
    dhd->pub.hang_was_pending = 0;
    dhd->pub.hang_reason = 0;
    dhd->pub.iovar_timeout_occured = 0;
#ifdef PCIE_FULL_DONGLE
    dhd->pub.d3ack_timeout_occured = 0;
    dhd->pub.livelock_occured = 0;
    dhd->pub.pktid_audit_failed = 0;
#endif /* PCIE_FULL_DONGLE */
    dhd->pub.iface_op_failed = 0;
    dhd->pub.scan_timeout_occurred = 0;
    dhd->pub.scan_busy_occurred = 0;
    dhd->pub.smmu_fault_occurred = 0;

#ifdef DHD_LOSSLESS_ROAMING
    dhd->pub.dequeue_prec_map = ALLPRIO;
#endif // endif

    ifidx = dhd_net2idx(dhd, net);
    DHD_TRACE(("%s: ifidx %d\n", __FUNCTION__, ifidx));

    if (ifidx < 0) {
        DHD_ERROR(("%s: Error: called with invalid IF\n", __FUNCTION__));
        ret = -1;
        goto exit;
    }

    if (!dhd->iflist[ifidx]) {
        DHD_ERROR(
            ("%s: Error: called when IF already deleted\n", __FUNCTION__));
        ret = -1;
        goto exit;
    }

    if (ifidx == 0) {
        atomic_set(&dhd->pend_8021x_cnt, 0);
        if (!dhd_download_fw_on_driverload) {
            DHD_STATLOG_CTRL(&dhd->pub, ST(WLAN_POWER_ON), ifidx, 0);
#ifdef WL_EVENT
            wl_ext_event_attach_netdev(net, ifidx, dhd->iflist[ifidx]->bssidx);
#endif /* WL_EVENT */
#ifdef WL_ESCAN
            wl_escan_event_attach(net, ifidx);
#endif /* WL_ESCAN */
#ifdef WL_EXT_IAPSTA
            wl_ext_iapsta_attach_netdev(net, ifidx, dhd->iflist[ifidx]->bssidx);
#endif /* WL_EXT_IAPSTA */
#if defined(USE_INITIAL_2G_SCAN) || defined(USE_INITIAL_SHORT_DWELL_TIME)
            g_first_broadcast_scan = TRUE;
#endif /* USE_INITIAL_2G_SCAN || USE_INITIAL_SHORT_DWELL_TIME */
#ifdef SHOW_LOGTRACE
            /* dhd_cancel_logtrace_process_sync is called in dhd_stop
             * for built-in models. Need to start logtrace kthread before
             * calling wifi on, because once wifi is on, EDL will be in action
             * any moment, and if kthread is not active, FW event logs will
             * not be available
             */
            if (dhd_reinit_logtrace_process(dhd) != BCME_OK) {
                goto exit;
            }
#endif /* SHOW_LOGTRACE */
#if defined(BT_OVER_SDIO)
            ret = dhd_bus_get(&dhd->pub, WLAN_MODULE);
            wl_ohos_set_wifi_on_flag(TRUE);
#else
            ret = wl_ohos_wifi_on(net);
#endif /* BT_OVER_SDIO */
            if (ret != 0) {
                DHD_ERROR(("%s : wl_ohos_wifi_on failed (%d)\n",
                           __FUNCTION__, ret));
                ret = -1;
                goto exit;
            }
        }
#ifdef SUPPORT_DEEP_SLEEP
        else {
            /* Flags to indicate if we distingish
             * power off policy when user set the memu
             * "Keep Wi-Fi on during sleep" to "Never"
             */
            if (trigger_deep_sleep) {
#if defined(USE_INITIAL_2G_SCAN) || defined(USE_INITIAL_SHORT_DWELL_TIME)
                g_first_broadcast_scan = TRUE;
#endif /* USE_INITIAL_2G_SCAN || USE_INITIAL_SHORT_DWELL_TIME */
                dhd_deepsleep(net, 0);
                trigger_deep_sleep = 0;
            }
        }
#endif /* SUPPORT_DEEP_SLEEP */
#ifdef FIX_CPU_MIN_CLOCK
        if (dhd_get_fw_mode(dhd) == DHD_FLAG_HOSTAP_MODE) {
            dhd_init_cpufreq_fix(dhd);
            dhd_fix_cpu_freq(dhd);
        }
#endif /* FIX_CPU_MIN_CLOCK */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
#if defined(OOB_INTR_ONLY)
        if (dhd->pub.conf->dpc_cpucore >= 0) {
            dhd_bus_get_ids(dhd->pub.bus, &bus_type, &bus_num, &slot_num);
            adapter =
                dhd_wifi_platform_get_adapter(bus_type, bus_num, slot_num);
            if (adapter) {
                printf("%s: set irq affinity hit %d\n", __FUNCTION__,
                       dhd->pub.conf->dpc_cpucore);
                irq_set_affinity_hint(adapter->irq_num,
                                      cpumask_of(dhd->pub.conf->dpc_cpucore));
            }
        }
#endif
#endif /* LINUX_VERSION >= KERNEL_VERSION(2, 6, 35)  */

        if (dhd->pub.busstate != DHD_BUS_DATA) {
#ifdef BCMDBUS
            dhd_set_path(&dhd->pub);
            DHD_MUTEX_UNLOCK();
            wait_event_interruptible_timeout(
                dhd->adapter->status_event,
                wifi_get_adapter_status(dhd->adapter, WIFI_STATUS_FW_READY),
                msecs_to_jiffies(DHD_FW_READY_TIMEOUT));
            DHD_MUTEX_LOCK();
            if ((ret = dbus_up(dhd->pub.bus)) != 0) {
                DHD_ERROR(("%s: failed to dbus_up with code %d\n", __FUNCTION__,
                           ret));
                goto exit;
            } else {
                dhd->pub.busstate = DHD_BUS_DATA;
            }
            if ((ret = dhd_sync_with_dongle(&dhd->pub)) < 0) {
                DHD_ERROR(("%s: failed with code %d\n", __FUNCTION__, ret));
                goto exit;
            }
#else
            /* try to bring up bus */
            DHD_PERIM_UNLOCK(&dhd->pub);

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
            if (pm_runtime_get_sync(dhd_bus_to_dev(dhd->pub.bus)) >= 0) {
                ret = dhd_bus_start(&dhd->pub);
                pm_runtime_mark_last_busy(dhd_bus_to_dev(dhd->pub.bus));
                pm_runtime_put_autosuspend(dhd_bus_to_dev(dhd->pub.bus));
            }
#else
            ret = dhd_bus_start(&dhd->pub);
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

            DHD_PERIM_LOCK(&dhd->pub);
            if (ret) {
                DHD_ERROR(("%s: failed with code %d\n", __FUNCTION__, ret));
                ret = -1;
                goto exit;
            }
#endif /* !BCMDBUS */
        }
#ifdef WL_EXT_IAPSTA
        wl_ext_iapsta_attach_name(net, ifidx);
#endif

#ifdef BT_OVER_SDIO
        if (dhd->pub.is_bt_recovery_required) {
            DHD_ERROR(("%s: Send Hang Notification 2 to BT\n", __FUNCTION__));
            bcmsdh_btsdio_process_dhd_hang_notification(TRUE);
        }
        dhd->pub.is_bt_recovery_required = FALSE;
#endif // endif

        /* dhd_sync_with_dongle has been called in dhd_bus_start or
         * wl_ohos_wifi_on */
        memcpy(net->dev_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);

#ifdef TOE
        /* Get current TOE mode from dongle */
        if (dhd_toe_get(dhd, ifidx, &toe_ol) >= 0 &&
            (toe_ol & TOE_TX_CSUM_OL) != 0) {
            dhd->iflist[ifidx]->net->features |= NETIF_F_IP_CSUM;
        } else {
            dhd->iflist[ifidx]->net->features &= ~NETIF_F_IP_CSUM;
        }
#endif /* TOE */

#if defined(DHD_LB_RXP)
        __skb_queue_head_init(&dhd->rx_pend_queue);
        if (dhd->rx_napi_netdev == NULL) {
            dhd->rx_napi_netdev = dhd->iflist[ifidx]->net;
            memset(&dhd->rx_napi_struct, 0, sizeof(struct napi_struct));
            netif_napi_add(dhd->rx_napi_netdev, &dhd->rx_napi_struct,
                           dhd_napi_poll, dhd_napi_weight);
            DHD_INFO(("%s napi<%p> enabled ifp->net<%p,%s>\n", __FUNCTION__,
                      &dhd->rx_napi_struct, net, net->name));
            napi_enable(&dhd->rx_napi_struct);
            DHD_INFO(("%s load balance init rx_napi_struct\n", __FUNCTION__));
            skb_queue_head_init(&dhd->rx_napi_queue);
        } /* rx_napi_netdev == NULL */
#endif    /* DHD_LB_RXP */

#if defined(DHD_LB_TXP)
        /* Use the variant that uses locks */
        skb_queue_head_init(&dhd->tx_pend_queue);
#endif /* DHD_LB_TXP */

#if defined(WL_CFG80211)
        if (unlikely(wl_cfg80211_up(net))) {
            DHD_ERROR(("%s: failed to bring up cfg80211\n", __FUNCTION__));
            ret = -1;
            goto exit;
        }
        if (!dhd_download_fw_on_driverload) {
#ifdef ARP_OFFLOAD_SUPPORT
            dhd->pend_ipaddr = 0;
            if (!dhd_inetaddr_notifier_registered) {
                dhd_inetaddr_notifier_registered = TRUE;
                register_inetaddr_notifier(&dhd_inetaddr_notifier);
            }
#endif /* ARP_OFFLOAD_SUPPORT */
#if defined(CONFIG_IPV6) && defined(IPV6_NDO_SUPPORT)
            if (!dhd_inet6addr_notifier_registered) {
                dhd_inet6addr_notifier_registered = TRUE;
                register_inet6addr_notifier(&dhd_inet6addr_notifier);
            }
#endif /* CONFIG_IPV6 && IPV6_NDO_SUPPORT */
        }

#if defined(DHD_CONTROL_PCIE_ASPM_WIFI_TURNON)
        dhd_bus_aspm_enable_rc_ep(dhd->pub.bus, TRUE);
#endif /* DHD_CONTROL_PCIE_ASPM_WIFI_TURNON */
#if defined(DHD_CONTROL_PCIE_CPUCORE_WIFI_TURNON)
        dhd_irq_set_affinity(&dhd->pub, cpumask_of(0));
#endif /* DHD_CONTROL_PCIE_CPUCORE_WIFI_TURNON */
#ifdef DHD_LB_IRQSET
        dhd_irq_set_affinity(&dhd->pub, dhd->cpumask_primary);
#endif /* DHD_LB_IRQSET */
#if defined(ARGOS_NOTIFY_CB)
        argos_register_notifier_init(net);
#endif // endif
#if defined(NUM_SCB_MAX_PROBE)
        dhd_set_scb_probe(&dhd->pub);
#endif /* NUM_SCB_MAX_PROBE */
#endif /* WL_CFG80211 */
#ifdef WL_ESCAN
        if (unlikely(wl_escan_up(net))) {
            DHD_ERROR(("%s: failed to bring up escan\n", __FUNCTION__));
            ret = -1;
            goto exit;
        }
#endif /* WL_ESCAN */
#if defined(ISAM_PREINIT)
        if (!dhd_download_fw_on_driverload) {
            if (dhd->pub.conf) {
                wl_ohos_ext_priv_cmd(net, dhd->pub.conf->isam_init, 0,
                                        &bytes_written);
                wl_ohos_ext_priv_cmd(net, dhd->pub.conf->isam_config, 0,
                                        &bytes_written);
                wl_ohos_ext_priv_cmd(net, dhd->pub.conf->isam_enable, 0,
                                        &bytes_written);
            }
        }
#endif
    }

    dhd->pub.up = 1;

    if (wl_event_enable) {
        /* For wl utility to receive events */
        dhd->pub.wl_event_enabled = true;
    } else {
        dhd->pub.wl_event_enabled = false;
    }

    if (logtrace_pkt_sendup) {
        /* For any deamon to recieve logtrace */
        dhd->pub.logtrace_pkt_sendup = true;
    } else {
        dhd->pub.logtrace_pkt_sendup = false;
    }

    OLD_MOD_INC_USE_COUNT;

#ifdef BCMDBGFS
    dhd_dbgfs_init(&dhd->pub);
#endif // endif

exit:
    mutex_unlock(&dhd->pub.ndev_op_sync);
#if defined(ENABLE_INSMOD_NO_FW_LOAD) && defined(NO_POWER_OFF_AFTER_OPEN)
    dhd_download_fw_on_driverload = TRUE;
    dhd_driver_init_done = TRUE;
#elif defined(ENABLE_INSMOD_NO_FW_LOAD) && defined(ENABLE_INSMOD_NO_POWER_OFF)
    dhd_download_fw_on_driverload = FALSE;
    dhd_driver_init_done = TRUE;
#endif
    if (ret) {
        dhd_stop(net);
    }

    DHD_PERIM_UNLOCK(&dhd->pub);
    DHD_OS_WAKE_UNLOCK(&dhd->pub);

    WL_MSG(net->name, "Exit ret=%d\n", ret);
    return ret;
}

/*
 * ndo_start handler for primary ndev
 */
static int dhd_pri_open(struct net_device *net)
{
    s32 ret;
    s32 max_cnt = 0;

    DHD_MUTEX_IS_LOCK_RETURN();
    DHD_MUTEX_LOCK();

    while (++max_cnt <= 0x5) {
        ret = dhd_open(net);
        if (unlikely(ret)) {
            DHD_ERROR(
                ("Failed to open primary dev ret %d, cnt=%d\n", ret, max_cnt));
            msleep(0x14);
            continue;
        } else {
            break;
        }
    }

    if (unlikely(ret)) {
        DHD_ERROR(("Failed to open primary dev ret %d, cnt=%d, oooo\n", ret,
                   max_cnt));
        DHD_MUTEX_UNLOCK();
        return ret;
    }

    /* Allow transmit calls */
    netif_start_queue(net);
    WL_MSG(net->name, "tx queue started\n");

#if defined(SET_RPS_CPUS)
    dhd_rps_cpus_enable(net, TRUE);
#endif

#if defined(SET_XPS_CPUS)
    dhd_xps_cpus_enable(net, TRUE);
#endif
    DHD_MUTEX_UNLOCK();

    return ret;
}

/*
 * ndo_stop handler for primary ndev
 */
static int dhd_pri_stop(struct net_device *net)
{
    s32 ret;

    /* stop tx queue */
    netif_stop_queue(net);
    WL_MSG(net->name, "tx queue stopped\n");

    ret = dhd_stop(net);
    if (unlikely(ret)) {
        DHD_ERROR(("dhd_stop failed: %d\n", ret));
        return ret;
    }

    return ret;
}

#if defined(WL_STATIC_IF) && defined(WL_CFG80211)
/*
 * For static I/Fs, the firmware interface init
 * is done from the IFF_UP context.
 */
static int dhd_static_if_open(struct net_device *net)
{
    s32 ret = 0;
    struct bcm_cfg80211 *cfg;
    struct net_device *primary_netdev = NULL;
#ifdef WLEASYMESH
    dhd_info_t *dhd = DHD_DEV_INFO(net);
#endif /* WLEASYMESH */

    DHD_MUTEX_LOCK();
    cfg = wl_get_cfg(net);
    primary_netdev = bcmcfg_to_prmry_ndev(cfg);

    if (!wl_cfg80211_static_if(cfg, net)) {
        WL_MSG(net->name, "non-static interface ..do nothing\n");
        ret = BCME_OK;
        goto done;
    }

    WL_MSG(net->name, "Enter\n");
    /* Ensure fw is initialized. If it is already initialized,
     * dhd_open will return success.
     */
#ifdef WLEASYMESH
    WL_MSG(net->name, "switch to EasyMesh fw\n");
    dhd->pub.conf->fw_type = FW_TYPE_EZMESH;
    ret = dhd_stop(primary_netdev);
    if (unlikely(ret)) {
        printf("===>%s, Failed to close primary dev ret %d\n", __FUNCTION__,
               ret);
        goto done;
    }
    OSL_SLEEP(1);
#endif /* WLEASYMESH */
    ret = dhd_open(primary_netdev);
    if (unlikely(ret)) {
        DHD_ERROR(("Failed to open primary dev ret %d\n", ret));
        goto done;
    }

    ret = wl_cfg80211_static_if_open(net);
    if (!ret) {
        /* Allow transmit calls */
        netif_start_queue(net);
    }
done:
    WL_MSG(net->name, "Exit ret=%d\n", ret);
    DHD_MUTEX_UNLOCK();
    return ret;
}

static int dhd_static_if_stop(struct net_device *net)
{
    struct bcm_cfg80211 *cfg;
    struct net_device *primary_netdev = NULL;
    int ret = BCME_OK;
    dhd_info_t *dhd = DHD_DEV_INFO(net);

    WL_MSG(net->name, "Enter\n");

    cfg = wl_get_cfg(net);
    if (!wl_cfg80211_static_if(cfg, net)) {
        DHD_TRACE(("non-static interface (%s)..do nothing \n", net->name));
        return BCME_OK;
    }
#ifdef DHD_NOTIFY_MAC_CHANGED
    if (dhd->pub.skip_dhd_stop) {
        WL_MSG(net->name, "Exit skip stop\n");
        return BCME_OK;
    }
#endif /* DHD_NOTIFY_MAC_CHANGED */

    /* Ensure queue is disabled */
    netif_tx_disable(net);

    dhd_net_if_lock_local(dhd);
    ret = wl_cfg80211_static_if_close(net);
    dhd_net_if_unlock_local(dhd);

    if (dhd->pub.up == 0) {
        /* If fw is down, return */
        DHD_ERROR(("fw down\n"));
        return BCME_OK;
    }
    /* If STA iface is not in operational, invoke dhd_close from this
     * context.
     */
    primary_netdev = bcmcfg_to_prmry_ndev(cfg);
#ifdef WLEASYMESH
    if (dhd->pub.conf->fw_type == FW_TYPE_EZMESH) {
        WL_MSG(net->name, "switch to STA fw\n");
        dhd->pub.conf->fw_type = FW_TYPE_STA;
    } else
#endif /* WLEASYMESH */
        if (!(primary_netdev->flags & IFF_UP)) {
            ret = dhd_stop(primary_netdev);
        } else {
            DHD_ERROR(("Skipped dhd_stop, as sta is operational\n"));
        }
    WL_MSG(net->name, "Exit ret=%d\n", ret);

    return ret;
}
#endif /* WL_STATIC_IF && WL_CF80211 */

int dhd_do_driver_init(struct net_device *net)
{
    dhd_info_t *dhd = NULL;
    int ret = 0;

    if (!net) {
        DHD_ERROR(("Primary Interface not initialized \n"));
        return -EINVAL;
    }

    DHD_MUTEX_IS_LOCK_RETURN();
    DHD_MUTEX_LOCK();

    /*  && defined(BCMSDIO) */
    dhd = DHD_DEV_INFO(net);
    /* If driver is already initialized, do nothing
     */
    if (dhd->pub.busstate == DHD_BUS_DATA) {
        DHD_TRACE(("Driver already Inititalized. Nothing to do"));
        goto exit;
    }

    if (dhd_open(net) < 0) {
        DHD_ERROR(("Driver Init Failed \n"));
        ret = -1;
        goto exit;
    }
exit:
    DHD_MUTEX_UNLOCK();
    return ret;
}

int dhd_event_ifadd(dhd_info_t *dhdinfo, wl_event_data_if_t *ifevent,
                    char *name, uint8 *mac)
{
#ifdef WL_CFG80211
    if (wl_cfg80211_notify_ifadd(dhd_linux_get_primary_netdev(&dhdinfo->pub),
                                 ifevent->ifidx, name, mac, ifevent->bssidx,
                                 ifevent->role) == BCME_OK) {
        return BCME_OK;
    }
#endif // endif

    /* handle IF event caused by wl commands, SoftAP, WEXT and
     * anything else. This has to be done asynchronously otherwise
     * DPC will be blocked (and iovars will timeout as DPC has no chance
     * to read the response back)
     */
    if (ifevent->ifidx > 0) {
        dhd_if_event_t *if_event =
            MALLOC(dhdinfo->pub.osh, sizeof(dhd_if_event_t));
        if (if_event == NULL) {
            DHD_ERROR(("dhd_event_ifadd: Failed MALLOC, malloced %d bytes",
                       MALLOCED(dhdinfo->pub.osh)));
            return BCME_NOMEM;
        }

        memcpy(&if_event->event, ifevent, sizeof(if_event->event));
        memcpy(if_event->mac, mac, ETHER_ADDR_LEN);
        strncpy(if_event->name, name, IFNAMSIZ);
        if_event->name[IFNAMSIZ - 1] = '\0';
        dhd_deferred_schedule_work(dhdinfo->dhd_deferred_wq, (void *)if_event,
                                   DHD_WQ_WORK_IF_ADD, dhd_ifadd_event_handler,
                                   DHD_WQ_WORK_PRIORITY_LOW);
    }

    return BCME_OK;
}

int dhd_event_ifdel(dhd_info_t *dhdinfo, wl_event_data_if_t *ifevent,
                    char *name, uint8 *mac)
{
    dhd_if_event_t *if_event;

#ifdef WL_CFG80211
    if (wl_cfg80211_notify_ifdel(dhd_linux_get_primary_netdev(&dhdinfo->pub),
                                 ifevent->ifidx, name, mac,
                                 ifevent->bssidx) == BCME_OK) {
        return BCME_OK;
    }
#endif /* WL_CFG80211 */

    /* handle IF event caused by wl commands, SoftAP, WEXT and
     * anything else
     */
    if_event = MALLOC(dhdinfo->pub.osh, sizeof(dhd_if_event_t));
    if (if_event == NULL) {
        DHD_ERROR(
            ("dhd_event_ifdel: malloc failed for if_event, malloced %d bytes",
             MALLOCED(dhdinfo->pub.osh)));
        return BCME_NOMEM;
    }
    memcpy(&if_event->event, ifevent, sizeof(if_event->event));
    memcpy(if_event->mac, mac, ETHER_ADDR_LEN);
    strncpy(if_event->name, name, IFNAMSIZ);
    if_event->name[IFNAMSIZ - 1] = '\0';
    dhd_deferred_schedule_work(dhdinfo->dhd_deferred_wq, (void *)if_event,
                               DHD_WQ_WORK_IF_DEL, dhd_ifdel_event_handler,
                               DHD_WQ_WORK_PRIORITY_LOW);

    return BCME_OK;
}

int dhd_event_ifchange(dhd_info_t *dhdinfo, wl_event_data_if_t *ifevent,
                       char *name, uint8 *mac)
{
#ifdef DHD_UPDATE_INTF_MAC
    dhd_if_event_t *if_event;
#endif /* DHD_UPDATE_INTF_MAC */

#ifdef WL_CFG80211
    wl_cfg80211_notify_ifchange(dhd_linux_get_primary_netdev(&dhdinfo->pub),
                                ifevent->ifidx, name, mac, ifevent->bssidx);
#endif /* WL_CFG80211 */

#ifdef DHD_UPDATE_INTF_MAC
    /* handle IF event caused by wl commands, SoftAP, WEXT, MBSS and
     * anything else
     */
    if_event = MALLOC(dhdinfo->pub.osh, sizeof(dhd_if_event_t));
    if (if_event == NULL) {
        DHD_ERROR(
            ("dhd_event_ifdel: malloc failed for if_event, malloced %d bytes",
             MALLOCED(dhdinfo->pub.osh)));
        return BCME_NOMEM;
    }
    memcpy(&if_event->event, ifevent, sizeof(if_event->event));
    // construct a change event
    if_event->event.ifidx = dhd_ifname2idx(dhdinfo, name);
    if_event->event.opcode = WLC_E_IF_CHANGE;
    memcpy(if_event->mac, mac, ETHER_ADDR_LEN);
    strncpy(if_event->name, name, IFNAMSIZ);
    if_event->name[IFNAMSIZ - 1] = '\0';
    dhd_deferred_schedule_work(
        dhdinfo->dhd_deferred_wq, (void *)if_event, DHD_WQ_WORK_IF_UPDATE,
        dhd_ifupdate_event_handler, DHD_WQ_WORK_PRIORITY_LOW);
#endif /* DHD_UPDATE_INTF_MAC */

    return BCME_OK;
}

#ifdef WL_NATOE
/* Handler to update natoe info and bind with new subscriptions if there is
 * change in config */
static void dhd_natoe_ct_event_hanlder(void *handle, void *event_info, u8 event)
{
    dhd_info_t *dhd = handle;
    wl_event_data_natoe_t *natoe = event_info;
    dhd_nfct_info_t *nfct = dhd->pub.nfct;

    if (event != DHD_WQ_WORK_NATOE_EVENT) {
        DHD_ERROR(("%s: unexpected event \n", __FUNCTION__));
        return;
    }

    if (!dhd) {
        DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
        return;
    }
    if (natoe->natoe_active && natoe->sta_ip && natoe->start_port &&
        natoe->end_port && (natoe->start_port < natoe->end_port)) {
        /* Rebind subscriptions to start receiving notifications from groups */
        if (dhd_ct_nl_bind(nfct, nfct->subscriptions) < 0) {
            dhd_ct_close(nfct);
        }
        dhd_ct_send_dump_req(nfct);
    } else if (!natoe->natoe_active) {
        /* Rebind subscriptions to stop receiving notifications from groups */
        if (dhd_ct_nl_bind(nfct, CT_NULL_SUBSCRIPTION) < 0) {
            dhd_ct_close(nfct);
        }
    }
}

/* As NATOE enable/disbale event is received, we have to bind with new NL
 * subscriptions. Scheduling workq to switch from tasklet context as bind call
 * may sleep in handler
 */
int dhd_natoe_ct_event(dhd_pub_t *dhd, char *data)
{
    wl_event_data_natoe_t *event_data = (wl_event_data_natoe_t *)data;

    if (dhd->nfct) {
        wl_event_data_natoe_t *natoe = dhd->nfct->natoe_info;
        uint8 prev_enable = natoe->natoe_active;

        spin_lock_bh(&dhd->nfct_lock);
        memcpy(natoe, event_data, sizeof(*event_data));
        spin_unlock_bh(&dhd->nfct_lock);

        if (prev_enable != event_data->natoe_active) {
            dhd_deferred_schedule_work(dhd->info->dhd_deferred_wq,
                                       (void *)natoe, DHD_WQ_WORK_NATOE_EVENT,
                                       dhd_natoe_ct_event_hanlder,
                                       DHD_WQ_WORK_PRIORITY_LOW);
        }
        return BCME_OK;
    }
    DHD_ERROR(("%s ERROR NFCT is not enabled \n", __FUNCTION__));
    return BCME_ERROR;
}

/* Handler to send natoe ioctl to dongle */
static void dhd_natoe_ct_ioctl_handler(void *handle, void *event_info,
                                       uint8 event)
{
    dhd_info_t *dhd = handle;
    dhd_ct_ioc_t *ct_ioc = event_info;

    if (event != DHD_WQ_WORK_NATOE_IOCTL) {
        DHD_ERROR(("%s: unexpected event \n", __FUNCTION__));
        return;
    }

    if (!dhd) {
        DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
        return;
    }

    if (dhd_natoe_prep_send_exception_port_ioctl(&dhd->pub, ct_ioc) < 0) {
        DHD_ERROR(("%s: Error in sending NATOE IOCTL \n", __FUNCTION__));
    }
}

/* When Netlink message contains port collision info, the info must be sent to
 * dongle FW For that we have to switch context from softirq/tasklet by
 * scheduling workq for natoe_ct ioctl
 */
void dhd_natoe_ct_ioctl_schedule_work(dhd_pub_t *dhd, dhd_ct_ioc_t *ioc)
{
    dhd_deferred_schedule_work(
        dhd->info->dhd_deferred_wq, (void *)ioc, DHD_WQ_WORK_NATOE_IOCTL,
        dhd_natoe_ct_ioctl_handler, DHD_WQ_WORK_PRIORITY_HIGH);
}
#endif /* WL_NATOE */

/* This API maps ndev to ifp inclusive of static IFs */
static dhd_if_t *dhd_get_ifp_by_ndev(dhd_pub_t *dhdp, struct net_device *ndev)
{
    dhd_if_t *ifp = NULL;
#ifdef WL_STATIC_IF
    u32 ifidx = (DHD_MAX_IFS + DHD_MAX_STATIC_IFS - 1);
#else
    u32 ifidx = (DHD_MAX_IFS - 1);
#endif /* WL_STATIC_IF */

    dhd_info_t *dhdinfo = (dhd_info_t *)dhdp->info;
    do {
        ifp = dhdinfo->iflist[ifidx];
        if (ifp && (ifp->net == ndev)) {
            DHD_TRACE(("match found for %s. ifidx:%d\n", ndev->name, ifidx));
            return ifp;
        }
    } while (ifidx--);

    DHD_ERROR(("no entry found for %s\n", ndev->name));
    return NULL;
}

bool dhd_is_static_ndev(dhd_pub_t *dhdp, struct net_device *ndev)
{
    dhd_if_t *ifp = NULL;

    if (!dhdp || !ndev) {
        DHD_ERROR(("wrong input\n"));
        ASSERT(0);
        return false;
    }

    ifp = dhd_get_ifp_by_ndev(dhdp, ndev);
    return (ifp && (ifp->static_if == true));
}

#ifdef WL_STATIC_IF
/* In some cases, while registering I/F, the actual ifidx, bssidx and dngl_name
 * are not known. For e.g: static i/f case. This function lets to update it once
 * it is known.
 */
s32 dhd_update_iflist_info(dhd_pub_t *dhdp, struct net_device *ndev, int ifidx,
                           uint8 *mac, uint8 bssidx, const char *dngl_name,
                           int if_state)
{
    dhd_info_t *dhdinfo = (dhd_info_t *)dhdp->info;
    dhd_if_t *ifp, *ifp_new;
    s32 cur_idx;
    dhd_dev_priv_t *dev_priv;

    DHD_TRACE(
        ("[STATIC_IF] update ifinfo for state:%d ifidx:%d\n", if_state, ifidx));

    ASSERT(dhdinfo && (ifidx < (DHD_MAX_IFS + DHD_MAX_STATIC_IFS)));

    if ((ifp = dhd_get_ifp_by_ndev(dhdp, ndev)) == NULL) {
        return -ENODEV;
    }
    cur_idx = ifp->idx;

    if (if_state == NDEV_STATE_OS_IF_CREATED) {
        /* mark static if */
        ifp->static_if = TRUE;
        return BCME_OK;
    }

    ifp_new = dhdinfo->iflist[ifidx];
    if (ifp_new && (ifp_new != ifp)) {
        /* There should be only one entry for a given ifidx. */
        DHD_ERROR(("ifp ptr already present for ifidx:%d\n", ifidx));
        ASSERT(0);
        dhdp->hang_reason = HANG_REASON_IFACE_ADD_FAILURE;
        net_os_send_hang_message(ifp->net);
        return -EINVAL;
    }

    /* For static if delete case, cleanup the if before ifidx update */
    if ((if_state == NDEV_STATE_FW_IF_DELETED) ||
        (if_state == NDEV_STATE_FW_IF_FAILED)) {
        dhd_cleanup_if(ifp->net);
        dev_priv = DHD_DEV_PRIV(ndev);
        dev_priv->ifidx = ifidx;
    }

    /* update the iflist ifidx slot with cached info */
    dhdinfo->iflist[ifidx] = ifp;
    dhdinfo->iflist[cur_idx] = NULL;

    /* update the values */
    ifp->idx = ifidx;
    ifp->bssidx = bssidx;

    if (if_state == NDEV_STATE_FW_IF_CREATED) {
        dhd_dev_priv_save(ndev, dhdinfo, ifp, ifidx);
        /* initialize the dongle provided if name */
        if (dngl_name) {
            strlcpy(ifp->dngl_name, dngl_name, IFNAMSIZ);
        } else if (ndev->name[0] != '\0') {
            strlcpy(ifp->dngl_name, ndev->name, IFNAMSIZ);
        }
        if (mac != NULL) {
            (void)memcpy_s(&ifp->mac_addr, ETHER_ADDR_LEN, mac, ETHER_ADDR_LEN);
        }
#ifdef WL_EVENT
        wl_ext_event_attach_netdev(ndev, ifidx, bssidx);
#endif /* WL_EVENT */
#ifdef WL_ESCAN
        wl_escan_event_attach(ndev, ifidx);
#endif /* WL_ESCAN */
#ifdef WL_EXT_IAPSTA
        wl_ext_iapsta_ifadding(ndev, ifidx);
        wl_ext_iapsta_attach_netdev(ndev, ifidx, bssidx);
        wl_ext_iapsta_attach_name(ndev, ifidx);
#endif /* WL_EXT_IAPSTA */
    } else if (if_state == NDEV_STATE_FW_IF_DELETED) {
#ifdef WL_EXT_IAPSTA
        wl_ext_iapsta_dettach_netdev(ndev, cur_idx);
#endif /* WL_EXT_IAPSTA */
#ifdef WL_ESCAN
        wl_escan_event_dettach(ndev, cur_idx);
#endif /* WL_ESCAN */
#ifdef WL_EVENT
        wl_ext_event_dettach_netdev(ndev, cur_idx);
#endif /* WL_EVENT */
    }
    DHD_INFO(
        ("[STATIC_IF] ifp ptr updated for ifidx:%d curidx:%d if_state:%d\n",
         ifidx, cur_idx, if_state));
    return BCME_OK;
}
#endif /* WL_STATIC_IF */

#ifdef CONFIG_AP6XXX_WIFI6_HDF
struct net_device *get_krn_netdev(int ifidx);

int get_dhd_priv_data_size(void)
{
    return DHD_DEV_PRIV_SIZE;
}

const static struct net_device_ops *hdf_netdev_ops = NULL;

#endif

/* unregister and free the existing net_device interface (if any) in iflist and
 * allocate a new one. the slot is reused. this function does NOT register the
 * new interface to linux kernel. dhd_register_if does the job
 */
struct net_device *dhd_allocate_if(dhd_pub_t *dhdpub, int ifidx,
                                   const char *name, uint8 *mac, uint8 bssidx,
                                   bool need_rtnl_lock, const char *dngl_name)
{
    dhd_info_t *dhdinfo = (dhd_info_t *)dhdpub->info;
    dhd_if_t *ifp;

#ifdef CONFIG_AP6XXX_WIFI6_HDF
    DHD_ERROR(("%s: bdh6: create netdevice %s hdfidx=%d, ifidx=%d, bssidx=%u\n",
               __FUNCTION__, name, g_hdf_ifidx, ifidx, bssidx));
#else
    DHD_ERROR(("%s: bdh6: create netdevice %s ifidx=%d, bssidx=%u\n",
               __FUNCTION__, name, ifidx, bssidx));
#endif

    ASSERT(dhdinfo && (ifidx < (DHD_MAX_IFS + DHD_MAX_STATIC_IFS)));

    ifp = dhdinfo->iflist[ifidx];

    if (ifp != NULL) {
        if (ifp->net != NULL) {
            DHD_ERROR(("%s: free existing IF %s ifidx:%d \n", __FUNCTION__,
                       ifp->net->name, ifidx));

            if (ifidx == 0) {
                /* For primary ifidx (0), there shouldn't be
                 * any netdev present already.
                 */
                DHD_ERROR(("Primary ifidx populated already\n"));
                ASSERT(0);
                return NULL;
            }

            dhd_dev_priv_clear(ifp->net); /* clear net_device private */

            /* in unregister_netdev case, the interface gets freed by
             * net->destructor (which is set to free_netdev)
             */
            if (ifp->net->reg_state == NETREG_UNINITIALIZED) {
                free_netdev(ifp->net);
            } else {
                netif_stop_queue(ifp->net);
                if (need_rtnl_lock) {
                    unregister_netdev(ifp->net);
                } else {
                    unregister_netdevice(ifp->net);
                }
            }
            ifp->net = NULL;
        }
    } else {
        ifp = MALLOC(dhdinfo->pub.osh, sizeof(dhd_if_t));
        if (ifp == NULL) {
            DHD_ERROR(
                ("%s: OOM - dhd_if_t(%zu)\n", __FUNCTION__, sizeof(dhd_if_t)));
            return NULL;
        }
    }

    memset(ifp, 0, sizeof(dhd_if_t));
    ifp->info = dhdinfo;
    ifp->idx = ifidx;
    ifp->bssidx = bssidx;
#ifdef DHD_MCAST_REGEN
    ifp->mcast_regen_bss_enable = FALSE;
#endif // endif
    /* set to TRUE rx_pkt_chainable at alloc time */
    ifp->rx_pkt_chainable = TRUE;

    if (mac != NULL) {
        memcpy(&ifp->mac_addr, mac, ETHER_ADDR_LEN);
    }

    /* Allocate etherdev, including space for private structure */
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    ifp->net = get_krn_netdev(g_hdf_ifidx);
    if (g_hdf_ifidx == 0) {
        hdf_netdev_ops = ifp->net->netdev_ops;
    }
#else
    ifp->net = alloc_etherdev(DHD_DEV_PRIV_SIZE);
#endif
    if (ifp->net == NULL) {
        DHD_ERROR(
            ("%s: OOM - alloc_etherdev(%zu)\n", __FUNCTION__, sizeof(dhdinfo)));
        goto fail;
    }

    /* Setup the dhd interface's netdevice private structure. */
    dhd_dev_priv_save(ifp->net, dhdinfo, ifp, ifidx);

    if (name && name[0]) {
        strncpy(ifp->net->name, name, IFNAMSIZ);
        ifp->net->name[IFNAMSIZ - 1] = '\0';
    }

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 9))
#define IFP_NET_DESTRUCTOR ifp->net->priv_destructor
#else
#define IFP_NET_DESTRUCTOR ifp->net->destructor
#endif // endif

#ifdef WL_CFG80211
    if (ifidx == 0) {
        IFP_NET_DESTRUCTOR = free_netdev;
    } else {
        IFP_NET_DESTRUCTOR = dhd_netdev_free;
    }
#else
    IFP_NET_DESTRUCTOR = free_netdev;
#endif /* WL_CFG80211 */
    strncpy(ifp->name, ifp->net->name, IFNAMSIZ);
    ifp->name[IFNAMSIZ - 1] = '\0';
    dhdinfo->iflist[ifidx] = ifp;

    /* initialize the dongle provided if name */
    if (dngl_name) {
        strncpy(ifp->dngl_name, dngl_name, IFNAMSIZ);
    } else if (name) {
        strncpy(ifp->dngl_name, name, IFNAMSIZ);
    }

#ifdef PCIE_FULL_DONGLE
    /* Initialize STA info list */
    INIT_LIST_HEAD(&ifp->sta_list);
    DHD_IF_STA_LIST_LOCK_INIT(ifp);
#endif /* PCIE_FULL_DONGLE */

#ifdef DHD_L2_FILTER
    ifp->phnd_arp_table = init_l2_filter_arp_table(dhdpub->osh);
    ifp->parp_allnode = TRUE;
#endif /* DHD_L2_FILTER */

    DHD_CUMM_CTR_INIT(&ifp->cumm_ctr);

#ifdef DHD_4WAYM4_FAIL_DISCONNECT
    INIT_DELAYED_WORK(&ifp->m4state_work, dhd_m4_state_handler);
#endif /* DHD_4WAYM4_FAIL_DISCONNECT */

#ifdef DHD_POST_EAPOL_M1_AFTER_ROAM_EVT
    ifp->recv_reassoc_evt = FALSE;
    ifp->post_roam_evt = FALSE;
#endif /* DHD_POST_EAPOL_M1_AFTER_ROAM_EVT */

#ifdef DHDTCPSYNC_FLOOD_BLK
    INIT_WORK(&ifp->blk_tsfl_work, dhd_blk_tsfl_handler);
    dhd_reset_tcpsync_info_by_ifp(ifp);
#endif /* DHDTCPSYNC_FLOOD_BLK */

    return ifp->net;

fail:
    if (ifp != NULL) {
        if (ifp->net != NULL) {
#if defined(DHD_LB_RXP) && defined(PCIE_FULL_DONGLE)
            if (ifp->net == dhdinfo->rx_napi_netdev) {
                napi_disable(&dhdinfo->rx_napi_struct);
                netif_napi_del(&dhdinfo->rx_napi_struct);
                skb_queue_purge(&dhdinfo->rx_napi_queue);
                dhdinfo->rx_napi_netdev = NULL;
            }
#endif /* DHD_LB_RXP && PCIE_FULL_DONGLE */
            dhd_dev_priv_clear(ifp->net);
            free_netdev(ifp->net);
            ifp->net = NULL;
        }
        MFREE(dhdinfo->pub.osh, ifp, sizeof(*ifp));
        ifp = NULL;
    }

    dhdinfo->iflist[ifidx] = NULL;
    return NULL;
}

static void dhd_cleanup_ifp(dhd_pub_t *dhdp, dhd_if_t *ifp)
{
#ifdef PCIE_FULL_DONGLE
    s32 ifidx = 0;
    if_flow_lkup_t *if_flow_lkup = (if_flow_lkup_t *)dhdp->if_flow_lkup;
#endif /* PCIE_FULL_DONGLE */

    if (ifp != NULL) {
        if ((ifp->idx < 0) || (ifp->idx >= DHD_MAX_IFS)) {
            DHD_ERROR(("Wrong idx:%d \n", ifp->idx));
            ASSERT(0);
            return;
        }
#ifdef DHD_L2_FILTER
        bcm_l2_filter_arp_table_update(dhdpub->osh, ifp->phnd_arp_table, TRUE,
                                       NULL, FALSE, dhdpub->tickcnt);
        deinit_l2_filter_arp_table(dhdpub->osh, ifp->phnd_arp_table);
        ifp->phnd_arp_table = NULL;
#endif /* DHD_L2_FILTER */

        dhd_if_del_sta_list(ifp);
#ifdef PCIE_FULL_DONGLE
        /* Delete flowrings of virtual interface */
        ifidx = ifp->idx;
        if ((ifidx != 0) && (if_flow_lkup[ifidx].role != WLC_E_IF_ROLE_AP)) {
            dhd_flow_rings_delete(dhdp, ifidx);
        }
#endif /* PCIE_FULL_DONGLE */
    }
}

void dhd_cleanup_if(struct net_device *net)
{
    dhd_info_t *dhdinfo = DHD_DEV_INFO(net);
    dhd_pub_t *dhdp = &dhdinfo->pub;
    dhd_if_t *ifp;

    if (!(ifp = dhd_get_ifp_by_ndev(dhdp, net)) || (ifp->idx >= DHD_MAX_IFS)) {
        DHD_ERROR(("Wrong ifidx: %p, %d\n", ifp, ifp ? ifp->idx : -1));
        ASSERT(0);
        return;
    }

    dhd_cleanup_ifp(dhdp, ifp);
}

/* unregister and free the the net_device interface associated with the indexed
 * slot, also free the slot memory and set the slot pointer to NULL
 */
#define DHD_TX_COMPLETION_TIMEOUT 5000
int dhd_remove_if(dhd_pub_t *dhdpub, int ifidx, bool need_rtnl_lock)
{
    dhd_info_t *dhdinfo = (dhd_info_t *)dhdpub->info;
    dhd_if_t *ifp;
    unsigned long flags;
    long timeout;

    ifp = dhdinfo->iflist[ifidx];

    if (ifp != NULL) {
#ifdef DHD_4WAYM4_FAIL_DISCONNECT
        cancel_delayed_work_sync(&ifp->m4state_work);
#endif /* DHD_4WAYM4_FAIL_DISCONNECT */

#ifdef DHDTCPSYNC_FLOOD_BLK
        cancel_work_sync(&ifp->blk_tsfl_work);
#endif /* DHDTCPSYNC_FLOOD_BLK */

#ifdef WL_STATIC_IF
        /* static IF will be handled in detach */
        if (ifp->static_if) {
            DHD_TRACE(("Skip del iface for static interface\n"));
            return BCME_OK;
        }
#endif /* WL_STATIC_IF */
        if (ifp->net != NULL) {
            DHD_ERROR(
                ("deleting interface '%s' idx %d\n", ifp->net->name, ifp->idx));

            DHD_GENERAL_LOCK(dhdpub, flags);
            ifp->del_in_progress = true;
            DHD_GENERAL_UNLOCK(dhdpub, flags);

            /* If TX is in progress, hold the if del */
            if (DHD_IF_IS_TX_ACTIVE(ifp)) {
                DHD_INFO(("TX in progress. Wait for it to be complete."));
                timeout = wait_event_timeout(
                    dhdpub->tx_completion_wait,
                    ((ifp->tx_paths_active & DHD_TX_CONTEXT_MASK) == 0),
                    msecs_to_jiffies(DHD_TX_COMPLETION_TIMEOUT));
                if (!timeout) {
                    /* Tx completion timeout. Attempt proceeding ahead */
                    DHD_ERROR(("Tx completion timed out!\n"));
                    ASSERT(0);
                }
            } else {
                DHD_TRACE(("No outstanding TX!\n"));
            }
            dhdinfo->iflist[ifidx] = NULL;
            /* in unregister_netdev case, the interface gets freed by
             * net->destructor (which is set to free_netdev)
             */
            if (ifp->net->reg_state == NETREG_UNINITIALIZED) {
                free_netdev(ifp->net);
            } else {
                netif_tx_disable(ifp->net);

#if defined(SET_RPS_CPUS)
                custom_rps_map_clear(ifp->net->_rx);
#endif /* SET_RPS_CPUS */
#if defined(SET_RPS_CPUS)
#if (defined(DHDTCPACK_SUPPRESS) && defined(BCMPCIE))
                dhd_tcpack_suppress_set(dhdpub, TCPACK_SUP_OFF);
#endif /* DHDTCPACK_SUPPRESS && BCMPCIE */
#endif // endif
                if (need_rtnl_lock) {
                    unregister_netdev(ifp->net);
                } else {
                    unregister_netdevice(ifp->net);
                }
#ifdef WL_EXT_IAPSTA
                wl_ext_iapsta_dettach_netdev(ifp->net, ifidx);
#endif /* WL_EXT_IAPSTA */
#ifdef WL_ESCAN
                wl_escan_event_dettach(ifp->net, ifidx);
#endif /* WL_ESCAN */
#ifdef WL_EVENT
                wl_ext_event_dettach_netdev(ifp->net, ifidx);
#endif /* WL_EVENT */
            }
            ifp->net = NULL;
            DHD_GENERAL_LOCK(dhdpub, flags);
            ifp->del_in_progress = false;
            DHD_GENERAL_UNLOCK(dhdpub, flags);
        }
        dhd_cleanup_ifp(dhdpub, ifp);
        DHD_CUMM_CTR_INIT(&ifp->cumm_ctr);

        MFREE(dhdinfo->pub.osh, ifp, sizeof(*ifp));
        ifp = NULL;
    }

    return BCME_OK;
}

#ifndef CONFIG_AP6XXX_WIFI6_HDF
static
#endif
    struct net_device_ops dhd_ops_pri = {
        .ndo_open = dhd_pri_open,
        .ndo_stop = dhd_pri_stop,
        .ndo_get_stats = dhd_get_stats,
#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
        .ndo_siocdevprivate = dhd_ioctl_entry_wrapper,
#else
        .ndo_do_ioctl = dhd_ioctl_entry_wrapper,
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(5, 15, 0) */
        .ndo_start_xmit = dhd_start_xmit_wrapper,
#else
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
        .ndo_siocdevprivate = dhd_ioctl_entry,
#else
        .ndo_do_ioctl = dhd_ioctl_entry,
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(5, 15, 0) */
        .ndo_start_xmit = dhd_start_xmit,
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */
        .ndo_set_mac_address = dhd_set_mac_address,
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 2, 0))
        .ndo_set_rx_mode = dhd_set_multicast_list,
#else
        .ndo_set_multicast_list = dhd_set_multicast_list,
#endif // endif
};

static struct net_device_ops dhd_ops_virt = {
#if defined(WL_CFG80211) && defined(WL_STATIC_IF)
    .ndo_open = dhd_static_if_open,
    .ndo_stop = dhd_static_if_stop,
#endif // endif
    .ndo_get_stats = dhd_get_stats,
#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
    .ndo_siocdevprivate = dhd_ioctl_entry_wrapper,
#else
        .ndo_do_ioctl = dhd_ioctl_entry_wrapper,
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(5, 15, 0) */
    .ndo_start_xmit = dhd_start_xmit_wrapper,
#else
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
    .ndo_siocdevprivate = dhd_ioctl_entry,
#else
    .ndo_do_ioctl = dhd_ioctl_entry,
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(5, 15, 0) */
    .ndo_start_xmit = dhd_start_xmit,
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */
    .ndo_set_mac_address = dhd_set_mac_address,
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 2, 0))
    .ndo_set_rx_mode = dhd_set_multicast_list,
#else
    .ndo_set_multicast_list = dhd_set_multicast_list,
#endif // endif
};

int dhd_os_write_file_posn(void *fp, unsigned long *posn, void *buf,
                           unsigned long buflen)
{
    loff_t wr_posn = *posn;

    if (!fp || !buf || buflen == 0) {
        return -1;
    }

    if (compat_vfs_write((struct file *)fp, buf, buflen, &wr_posn) < 0) {
        return -1;
    }

    *posn = wr_posn;
    return 0;
}

#ifdef SHOW_LOGTRACE
int dhd_os_read_file(void *file, char *buf, uint32 size)
{
    struct file *filep = (struct file *)file;

    if (!file || !buf) {
        return -1;
    }

    return vfs_read(filep, buf, size, &filep->f_pos);
}

int dhd_os_seek_file(void *file, int64 offset)
{
    struct file *filep = (struct file *)file;
    if (!file) {
        return -1;
    }

    /* offset can be -ve */
    filep->f_pos = filep->f_pos + offset;

    return 0;
}

static int dhd_init_logstrs_array(osl_t *osh, dhd_event_log_t *temp)
{
    struct file *filep = NULL;
    struct kstat stat;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    mm_segment_t fs;
#endif
    char *raw_fmts = NULL;
    int logstrs_size = 0;
    int error = 0;

#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    fs = get_fs();
    set_fs(KERNEL_DS);
#endif

    filep = filp_open(logstrs_path, O_RDONLY, 0);
    if (IS_ERR(filep)) {
        DHD_ERROR_NO_HW4(
            ("%s: Failed to open the file %s \n", __FUNCTION__, logstrs_path));
        goto fail;
    }
    error = vfs_stat(logstrs_path, &stat);
    if (error) {
        DHD_ERROR_NO_HW4(
            ("%s: Failed to stat file %s \n", __FUNCTION__, logstrs_path));
        goto fail;
    }
    logstrs_size = (int)stat.size;

    if (logstrs_size == 0) {
        DHD_ERROR(("%s: return as logstrs_size is 0\n", __FUNCTION__));
        goto fail1;
    }

    raw_fmts = MALLOC(osh, logstrs_size);
    if (raw_fmts == NULL) {
        DHD_ERROR(("%s: Failed to allocate memory \n", __FUNCTION__));
        goto fail;
    }

    if (vfs_read(filep, raw_fmts, logstrs_size, &filep->f_pos) !=
        logstrs_size) {
        DHD_ERROR_NO_HW4(
            ("%s: Failed to read file %s\n", __FUNCTION__, logstrs_path));
        goto fail;
    }

    if (dhd_parse_logstrs_file(osh, raw_fmts, logstrs_size, temp) == BCME_OK) {
        filp_close(filep, NULL);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
        set_fs(fs);
#endif
        return BCME_OK;
    }

fail:
    if (raw_fmts) {
        MFREE(osh, raw_fmts, logstrs_size);
        raw_fmts = NULL;
    }

fail1:
    if (!IS_ERR(filep)) {
        filp_close(filep, NULL);
    }

#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    set_fs(fs);
#endif
    temp->fmts = NULL;
    return BCME_ERROR;
}

static int dhd_read_map(osl_t *osh, char *fname, uint32 *ramstart,
                        uint32 *rodata_start, uint32 *rodata_end)
{
    struct file *filep = NULL;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    mm_segment_t fs;
#endif
    int err = BCME_ERROR;

    if (fname == NULL) {
        DHD_ERROR(("%s: ERROR fname is NULL \n", __FUNCTION__));
        return BCME_ERROR;
    }

#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    fs = get_fs();
    set_fs(KERNEL_DS);
#endif

    filep = filp_open(fname, O_RDONLY, 0);
    if (IS_ERR(filep)) {
        DHD_ERROR_NO_HW4(("%s: Failed to open %s \n", __FUNCTION__, fname));
        goto fail;
    }

    if ((err = dhd_parse_map_file(osh, filep, ramstart, rodata_start,
                                  rodata_end)) < 0) {
        goto fail;
    }

fail:
    if (!IS_ERR(filep)) {
        filp_close(filep, NULL);
    }

#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    set_fs(fs);
#endif

    return err;
}

static int dhd_init_static_strs_array(osl_t *osh, dhd_event_log_t *temp,
                                      char *str_file, char *map_file)
{
    struct file *filep = NULL;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    mm_segment_t fs;
#endif
    char *raw_fmts = NULL;
    uint32 logstrs_size = 0;
    int error = 0;
    uint32 ramstart = 0;
    uint32 rodata_start = 0;
    uint32 rodata_end = 0;
    uint32 logfilebase = 0;

    error = dhd_read_map(osh, map_file, &ramstart, &rodata_start, &rodata_end);
    if (error != BCME_OK) {
        DHD_ERROR(("readmap Error!! \n"));
        /* don't do event log parsing in actual case */
        if (strstr(str_file, ram_file_str) != NULL) {
            temp->raw_sstr = NULL;
        } else if (strstr(str_file, rom_file_str) != NULL) {
            temp->rom_raw_sstr = NULL;
        }
        return error;
    }
    DHD_ERROR(("ramstart: 0x%x, rodata_start: 0x%x, rodata_end:0x%x\n",
               ramstart, rodata_start, rodata_end));

#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    fs = get_fs();
    set_fs(KERNEL_DS);
#endif

    filep = filp_open(str_file, O_RDONLY, 0);
    if (IS_ERR(filep)) {
        DHD_ERROR(
            ("%s: Failed to open the file %s \n", __FUNCTION__, str_file));
        goto fail;
    }

    if (TRUE) {
        /* Full file size is huge. Just read required part */
        logstrs_size = rodata_end - rodata_start;
        logfilebase = rodata_start - ramstart;
    }

    if (logstrs_size == 0) {
        DHD_ERROR(("%s: return as logstrs_size is 0\n", __FUNCTION__));
        goto fail1;
    }

    raw_fmts = MALLOC(osh, logstrs_size);
    if (raw_fmts == NULL) {
        DHD_ERROR(("%s: Failed to allocate raw_fmts memory \n", __FUNCTION__));
        goto fail;
    }

    if (TRUE) {
        error = generic_file_llseek(filep, logfilebase, SEEK_SET);
        if (error < 0) {
            DHD_ERROR(
                ("%s: %s llseek failed %d \n", __FUNCTION__, str_file, error));
            goto fail;
        }
    }

    error = vfs_read(filep, raw_fmts, logstrs_size, (&filep->f_pos));
    if (error != logstrs_size) {
        DHD_ERROR(("%s: %s read failed %d \n", __FUNCTION__, str_file, error));
        goto fail;
    }

    if (strstr(str_file, ram_file_str) != NULL) {
        temp->raw_sstr = raw_fmts;
        temp->raw_sstr_size = logstrs_size;
        temp->rodata_start = rodata_start;
        temp->rodata_end = rodata_end;
    } else if (strstr(str_file, rom_file_str) != NULL) {
        temp->rom_raw_sstr = raw_fmts;
        temp->rom_raw_sstr_size = logstrs_size;
        temp->rom_rodata_start = rodata_start;
        temp->rom_rodata_end = rodata_end;
    }

    filp_close(filep, NULL);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    set_fs(fs);
#endif

    return BCME_OK;

fail:
    if (raw_fmts) {
        MFREE(osh, raw_fmts, logstrs_size);
        raw_fmts = NULL;
    }

fail1:
    if (!IS_ERR(filep)) {
        filp_close(filep, NULL);
    }

#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    set_fs(fs);
#endif

    if (strstr(str_file, ram_file_str) != NULL) {
        temp->raw_sstr = NULL;
    } else if (strstr(str_file, rom_file_str) != NULL) {
        temp->rom_raw_sstr = NULL;
    }

    return error;
} /* dhd_init_static_strs_array */

#endif /* SHOW_LOGTRACE */

#ifdef DHD_ERPOM
uint enable_erpom = 0;
module_param(enable_erpom, int, 0);

int dhd_wlan_power_off_handler(void *handler, unsigned char reason)
{
    dhd_pub_t *dhdp = (dhd_pub_t *)handler;
    bool dongle_isolation = dhdp->dongle_isolation;

    DHD_ERROR(("%s: WLAN DHD cleanup reason: %d\n", __FUNCTION__, reason));

    if ((reason == BY_BT_DUE_TO_BT) || (reason == BY_BT_DUE_TO_WLAN)) {
#if defined(DHD_FW_COREDUMP)
        /* save core dump to a file */
        if (dhdp->memdump_enabled) {
#ifdef DHD_SSSR_DUMP
            dhdp->collect_sssr = TRUE;
#endif /* DHD_SSSR_DUMP */
            dhdp->memdump_type = DUMP_TYPE_DUE_TO_BT;
            dhd_bus_mem_dump(dhdp);
        }
#endif /* DHD_FW_COREDUMP */
    }

    /* pause data on all the interfaces */
    dhd_bus_stop_queue(dhdp->bus);

    /* Devreset function will perform FLR again, to avoid it set
     * dongle_isolation */
    dhdp->dongle_isolation = TRUE;
    dhd_bus_devreset(dhdp, 1);                 /* DHD structure cleanup */
    dhdp->dongle_isolation = dongle_isolation; /* Restore the old value */
    return 0;
}

int dhd_wlan_power_on_handler(void *handler, unsigned char reason)
{
    dhd_pub_t *dhdp = (dhd_pub_t *)handler;
    bool dongle_isolation = dhdp->dongle_isolation;

    DHD_ERROR(("%s: WLAN DHD re-init reason: %d\n", __FUNCTION__, reason));
    /* Devreset function will perform FLR again, to avoid it set
     * dongle_isolation */
    dhdp->dongle_isolation = TRUE;
    dhd_bus_devreset(dhdp, 0);                 /* DHD structure re-init */
    dhdp->dongle_isolation = dongle_isolation; /* Restore the old value */
    /* resume data on all the interfaces */
    dhd_bus_start_queue(dhdp->bus);
    return 0;
}

#endif /* DHD_ERPOM */

#ifdef BCMDBUS
uint dhd_get_rxsz(dhd_pub_t *pub)
{
    struct net_device *net = NULL;
    dhd_info_t *dhd = NULL;
    uint rxsz;

    /* Assign rxsz for dbus_attach */
    dhd = pub->info;
    net = dhd->iflist[0]->net;
    net->hard_header_len = ETH_HLEN + pub->hdrlen;
    rxsz = DBUS_RX_BUFFER_SIZE_DHD(net);

    return rxsz;
}

void dhd_set_path(dhd_pub_t *pub)
{
    dhd_info_t *dhd = NULL;

    dhd = pub->info;

    /* try to download image and nvram to the dongle */
    if (dhd_update_fw_nv_path(dhd) && dhd->pub.bus) {
        DHD_INFO(("%s: fw %s, nv %s, conf %s\n", __FUNCTION__, dhd->fw_path,
                  dhd->nv_path, dhd->conf_path));
        dhd_bus_update_fw_nv_path(dhd->pub.bus, dhd->fw_path, dhd->nv_path,
                                  dhd->clm_path, dhd->conf_path);
    }
}
#endif

/** Called once for each hardware (dongle) instance that this DHD manages */
dhd_pub_t *dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen
#ifdef BCMDBUS
                      ,
                      void *data
#endif
)
{
    dhd_info_t *dhd = NULL;
    struct net_device *net = NULL;
    char if_name[IFNAMSIZ] = {'\0'};
#ifdef SHOW_LOGTRACE
    int ret;
#endif /* SHOW_LOGTRACE */
#ifdef DHD_ERPOM
    pom_func_handler_t *pom_handler;
#endif /* DHD_ERPOM */
#if defined(BCMSDIO) || defined(BCMPCIE)
    uint32 bus_type = -1;
    uint32 bus_num = -1;
    uint32 slot_num = -1;
    wifi_adapter_info_t *adapter = NULL;
#elif defined(BCMDBUS)
    wifi_adapter_info_t *adapter = data;
#endif

    dhd_attach_states_t dhd_state = DHD_ATTACH_STATE_INIT;
    DHD_TRACE(("%s: Enter\n", __FUNCTION__));

#ifdef PCIE_FULL_DONGLE
    ASSERT(sizeof(dhd_pkttag_fd_t) <= OSL_PKTTAG_SZ);
    ASSERT(sizeof(dhd_pkttag_fr_t) <= OSL_PKTTAG_SZ);
#endif /* PCIE_FULL_DONGLE */

    /* will implement get_ids for DBUS later */
#if defined(BCMSDIO) || defined(BCMPCIE)
    dhd_bus_get_ids(bus, &bus_type, &bus_num, &slot_num);
    adapter = dhd_wifi_platform_get_adapter(bus_type, bus_num, slot_num);
#endif

    /* Allocate primary dhd_info */
    dhd = wifi_platform_prealloc(adapter, DHD_PREALLOC_DHD_INFO,
                                 sizeof(dhd_info_t));
    if (dhd == NULL) {
        dhd = MALLOC(osh, sizeof(dhd_info_t));
        if (dhd == NULL) {
            DHD_ERROR(("%s: OOM - alloc dhd_info\n", __FUNCTION__));
            goto dhd_null_flag;
        }
    }
    memset(dhd, 0, sizeof(dhd_info_t));
    dhd_state |= DHD_ATTACH_STATE_DHD_ALLOC;

    dhd->unit = dhd_found + instance_base; /* do not increment dhd_found, yet */

    dhd->pub.osh = osh;
#ifdef DUMP_IOCTL_IOV_LIST
    dll_init(&(dhd->pub.dump_iovlist_head));
#endif /* DUMP_IOCTL_IOV_LIST */
    dhd->adapter = adapter;
    dhd->pub.adapter = (void *)adapter;
#ifdef BT_OVER_SDIO
    dhd->pub.is_bt_recovery_required = FALSE;
    mutex_init(&dhd->bus_user_lock);
#endif /* BT_OVER_SDIO */

    g_dhd_pub = &dhd->pub;

#ifdef DHD_DEBUG
    dll_init(&(dhd->pub.mw_list_head));
#endif /* DHD_DEBUG */

#ifdef CUSTOM_FORCE_NODFS_FLAG
    dhd->pub.dhd_cflags |= WLAN_PLAT_NODFS_FLAG;
    dhd->pub.force_country_change = TRUE;
#endif /* CUSTOM_FORCE_NODFS_FLAG */
#ifdef CUSTOM_COUNTRY_CODE
    get_customized_country_code(dhd->adapter, dhd->pub.dhd_cspec.country_abbrev,
                                &dhd->pub.dhd_cspec, dhd->pub.dhd_cflags);
#endif /* CUSTOM_COUNTRY_CODE */
#ifndef BCMDBUS
    dhd->thr_dpc_ctl.thr_pid = DHD_PID_KT_TL_INVALID;
    dhd->thr_wdt_ctl.thr_pid = DHD_PID_KT_INVALID;
#ifdef DHD_WET
    dhd->pub.wet_info = dhd_get_wet_info(&dhd->pub);
#endif /* DHD_WET */
    /* Initialize thread based operation and lock */
    sema_init(&dhd->sdsem, 1);
#endif /* !BCMDBUS */
    dhd->pub.pcie_txs_metadata_enable = pcie_txs_metadata_enable;

    /* Link to info module */
    dhd->pub.info = dhd;

    /* Link to bus module */
    dhd->pub.bus = bus;
    dhd->pub.hdrlen = bus_hdrlen;
    dhd->pub.txoff = FALSE;

    /* dhd_conf must be attached after linking dhd to dhd->pub.info,
     * because dhd_detech will check .info is NULL or not.
     */
    if (dhd_conf_attach(&dhd->pub) != 0) {
        DHD_ERROR(("dhd_conf_attach failed\n"));
        goto fail;
    }
#ifndef BCMDBUS
    dhd_conf_reset(&dhd->pub);
    dhd_conf_set_chiprev(&dhd->pub, dhd_bus_chip(bus), dhd_bus_chiprev(bus));
    dhd_conf_preinit(&dhd->pub);
#endif /* !BCMDBUS */

    /* Some DHD modules (e.g. cfg80211) configures operation mode based on
     * firmware name. This is indeed a hack but we have to make it work properly
     * before we have a better solution
     */
    dhd_update_fw_nv_path(dhd);

    /* Set network interface name if it was provided as module parameter */
    if (iface_name[0]) {
        int len;
        char ch;
        strncpy(if_name, iface_name, IFNAMSIZ);
        if_name[IFNAMSIZ - 1] = 0;
        len = strlen(if_name);
        ch = if_name[len - 1];
        if ((ch > '9' || ch < '0') && (len < IFNAMSIZ - 0x2)) {
            strncat(if_name, "%d", IFNAMSIZ - len - 1);
        }
    }

    /* Passing NULL to dngl_name to ensure host gets if_name in dngl_name member
     */
    net = dhd_allocate_if(&dhd->pub, 0, if_name, NULL, 0, TRUE, NULL);
    if (net == NULL) {
        goto fail;
    }
    mutex_init(&dhd->pub.ndev_op_sync);

    dhd_state |= DHD_ATTACH_STATE_ADD_IF;
#ifdef DHD_L2_FILTER
    /* initialize the l2_filter_cnt */
    dhd->pub.l2_filter_cnt = 0;
#endif // endif

#ifndef CONFIG_AP6XXX_WIFI6_HDF
    net->netdev_ops = NULL;
#endif

    mutex_init(&dhd->dhd_iovar_mutex);
    sema_init(&dhd->proto_sem, 1);
#ifdef DHD_ULP
    if (!(dhd_ulp_init(osh, &dhd->pub))) {
        goto fail;
    }
#endif /* DHD_ULP */

#ifdef PROP_TXSTATUS
    spin_lock_init(&dhd->wlfc_spinlock);

    dhd->pub.skip_fc = dhd_wlfc_skip_fc;
    dhd->pub.plat_init = dhd_wlfc_plat_init;
    dhd->pub.plat_deinit = dhd_wlfc_plat_deinit;

#ifdef DHD_WLFC_THREAD
    init_waitqueue_head(&dhd->pub.wlfc_wqhead);
    dhd->pub.wlfc_thread =
        kthread_create(dhd_wlfc_transfer_packets, &dhd->pub, "wlfc-thread");
    if (IS_ERR(dhd->pub.wlfc_thread)) {
        DHD_ERROR(("create wlfc thread failed\n"));
        goto fail;
    } else {
        wake_up_process(dhd->pub.wlfc_thread);
    }
#endif /* DHD_WLFC_THREAD */
#endif /* PROP_TXSTATUS */

    /* Initialize other structure content */
    init_waitqueue_head(&dhd->ioctl_resp_wait);
    init_waitqueue_head(&dhd->d3ack_wait);
    init_waitqueue_head(&dhd->ctrl_wait);
    init_waitqueue_head(&dhd->dhd_bus_busy_state_wait);
    init_waitqueue_head(&dhd->dmaxfer_wait);
    init_waitqueue_head(&dhd->pub.tx_completion_wait);
    dhd->pub.dhd_bus_busy_state = 0;
    /* Initialize the spinlocks */
    spin_lock_init(&dhd->sdlock);
    spin_lock_init(&dhd->txqlock);
    spin_lock_init(&dhd->dhd_lock);
    spin_lock_init(&dhd->txoff_lock);
    spin_lock_init(&dhd->rxf_lock);
#ifdef WLTDLS
    spin_lock_init(&dhd->pub.tdls_lock);
#endif /* WLTDLS */
#if defined(RXFRAME_THREAD)
    dhd->rxthread_enabled = TRUE;
#endif /* defined(RXFRAME_THREAD) */

#ifdef DHDTCPACK_SUPPRESS
    spin_lock_init(&dhd->tcpack_lock);
#endif /* DHDTCPACK_SUPPRESS */

    /* Initialize Wakelock stuff */
    spin_lock_init(&dhd->wakelock_spinlock);
    spin_lock_init(&dhd->wakelock_evt_spinlock);
    DHD_OS_WAKE_LOCK_INIT(dhd);
    dhd->wakelock_counter = 0;
    /* wakelocks prevent a system from going into a low power state */
#ifdef CONFIG_HAS_WAKELOCK
    // terence 20161023: can not destroy wl_wifi when wlan down, it will happen
    // null pointer in dhd_ioctl_entry
    wake_lock_init(&dhd->wl_wifi, WAKE_LOCK_SUSPEND, "wlan_wake");
    wake_lock_init(&dhd->wl_wdwake, WAKE_LOCK_SUSPEND, "wlan_wd_wake");
#endif /* CONFIG_HAS_WAKELOCK */

    mutex_init(&dhd->dhd_net_if_mutex);
    mutex_init(&dhd->dhd_suspend_mutex);
#if defined(PKT_FILTER_SUPPORT) && defined(APF)
    mutex_init(&dhd->dhd_apf_mutex);
#endif /* PKT_FILTER_SUPPORT && APF */
    dhd_state |= DHD_ATTACH_STATE_WAKELOCKS_INIT;

    /* Attach and link in the protocol */
    if (dhd_prot_attach(&dhd->pub) != 0) {
        DHD_ERROR(("dhd_prot_attach failed\n"));
        goto fail;
    }
    dhd_state |= DHD_ATTACH_STATE_PROT_ATTACH;

#ifdef WL_CFG80211
    spin_lock_init(&dhd->pub.up_lock);
    /* Attach and link in the cfg80211 */
    if (unlikely(wl_cfg80211_attach(net, &dhd->pub))) {
        DHD_ERROR(("wl_cfg80211_attach failed\n"));
        goto fail;
    }

    dhd_monitor_init(&dhd->pub);
    dhd_state |= DHD_ATTACH_STATE_CFG80211;
#endif // endif

#ifdef WL_EVENT
    if (wl_ext_event_attach(net) != 0) {
        DHD_ERROR(("wl_ext_event_attach failed\n"));
        goto fail;
    }
#endif /* WL_EVENT */
#ifdef WL_ESCAN
    /* Attach and link in the escan */
    if (wl_escan_attach(net) != 0) {
        DHD_ERROR(("wl_escan_attach failed\n"));
        goto fail;
    }
#endif /* WL_ESCAN */
#ifdef WL_EXT_IAPSTA
    if (wl_ext_iapsta_attach(net) != 0) {
        DHD_ERROR(("wl_ext_iapsta_attach failed\n"));
        goto fail;
    }
#endif /* WL_EXT_IAPSTA */
#ifdef WL_EXT_GENL
    if (wl_ext_genl_init(net)) {
        DHD_ERROR(("wl_ext_genl_init failed\n"));
        goto fail;
    }
#endif
#if defined(WL_WIRELESS_EXT)
    /* Attach and link in the iw */
    if (wl_iw_attach(net) != 0) {
        DHD_ERROR(("wl_iw_attach failed\n"));
        goto fail;
    }
    dhd_state |= DHD_ATTACH_STATE_WL_ATTACH;
#endif /* defined(WL_WIRELESS_EXT) */

#ifdef SHOW_LOGTRACE
    ret = dhd_init_logstrs_array(osh, &dhd->event_data);
    if (ret == BCME_OK) {
        dhd_init_static_strs_array(osh, &dhd->event_data, st_str_file_path,
                                   map_file_path);
        dhd_init_static_strs_array(osh, &dhd->event_data, rom_st_str_file_path,
                                   rom_map_file_path);
        dhd_state |= DHD_ATTACH_LOGTRACE_INIT;
    }
#endif /* SHOW_LOGTRACE */

    /* attach debug if support */
    if (dhd_os_dbg_attach(&dhd->pub)) {
        DHD_ERROR(("%s debug module attach failed\n", __FUNCTION__));
        goto fail;
    }
#ifdef DEBUGABILITY
#if defined(SHOW_LOGTRACE) && defined(DBG_RING_LOG_INIT_DEFAULT)
    /* enable verbose ring to support dump_trace_buf */
    dhd_os_start_logging(&dhd->pub, FW_VERBOSE_RING_NAME, 0x3, 0, 0, 0);
#endif /* SHOW_LOGTRACE */

#ifdef DBG_PKT_MON
    dhd->pub.dbg->pkt_mon_lock = dhd_os_spin_lock_init(dhd->pub.osh);
#ifdef DBG_PKT_MON_INIT_DEFAULT
    dhd_os_dbg_attach_pkt_monitor(&dhd->pub);
#endif /* DBG_PKT_MON_INIT_DEFAULT */
#endif /* DBG_PKT_MON */
#endif /* DEBUGABILITY */

#ifdef DHD_STATUS_LOGGING
    dhd->pub.statlog = dhd_attach_statlog(
        &dhd->pub, MAX_STATLOG_ITEM, MAX_STATLOG_REQ_ITEM, STATLOG_LOGBUF_LEN);
    if (dhd->pub.statlog == NULL) {
        DHD_ERROR(("%s: alloc statlog failed\n", __FUNCTION__));
    }
#endif /* DHD_STATUS_LOGGING */

#ifdef DHD_LOG_DUMP
    dhd_log_dump_init(&dhd->pub);
#endif /* DHD_LOG_DUMP */
#ifdef DHD_PKTDUMP_ROAM
    dhd_dump_pkt_init(&dhd->pub);
#endif /* DHD_PKTDUMP_ROAM */

    if (dhd_sta_pool_init(&dhd->pub, DHD_MAX_STA) != BCME_OK) {
        DHD_ERROR(("%s: Initializing %u sta\n", __FUNCTION__, DHD_MAX_STA));
        goto fail;
    }

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
    dhd->tx_wq = alloc_workqueue("bcmdhd-tx-wq",
                                 WQ_HIGHPRI | WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
    if (!dhd->tx_wq) {
        DHD_ERROR(("%s: alloc_workqueue(bcmdhd-tx-wq) failed\n", __FUNCTION__));
        goto fail;
    }
    dhd->rx_wq = alloc_workqueue("bcmdhd-rx-wq",
                                 WQ_HIGHPRI | WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
    if (!dhd->rx_wq) {
        DHD_ERROR(("%s: alloc_workqueue(bcmdhd-rx-wq) failed\n", __FUNCTION__));
        destroy_workqueue(dhd->tx_wq);
        dhd->tx_wq = NULL;
        goto fail;
    }
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

#ifndef BCMDBUS
    /* Set up the watchdog timer */
    init_timer_compat(&dhd->timer, dhd_watchdog, dhd);
    dhd->default_wd_interval = dhd_watchdog_ms;

    if (dhd_watchdog_prio >= 0) {
        /* Initialize watchdog thread */
        PROC_START(dhd_watchdog_thread, dhd, &dhd->thr_wdt_ctl, 0,
                   "dhd_watchdog_thread");
        if (dhd->thr_wdt_ctl.thr_pid < 0) {
            goto fail;
        }
    } else {
        dhd->thr_wdt_ctl.thr_pid = -1;
    }

#ifdef SHOW_LOGTRACE
    skb_queue_head_init(&dhd->evt_trace_queue);

    /* Create ring proc entries */
    dhd_dbg_ring_proc_create(&dhd->pub);
#endif /* SHOW_LOGTRACE */

    /* Set up the bottom half handler */
    if (dhd_dpc_prio >= 0) {
        /* Initialize DPC thread */
        PROC_START(dhd_dpc_thread, dhd, &dhd->thr_dpc_ctl, 0, "dhd_dpc");
        if (dhd->thr_dpc_ctl.thr_pid < 0) {
            goto fail;
        }
    } else {
        /*  use tasklet for dpc */
        tasklet_init(&dhd->tasklet, dhd_dpc, (ulong)dhd);
        dhd->thr_dpc_ctl.thr_pid = -1;
    }

    if (dhd->rxthread_enabled) {
        bzero(&dhd->pub.skbbuf[0], sizeof(void *) * MAXSKBPEND);
        /* Initialize RXF thread */
        PROC_START(dhd_rxf_thread, dhd, &dhd->thr_rxf_ctl, 0, "dhd_rxf");
        if (dhd->thr_rxf_ctl.thr_pid < 0) {
            goto fail;
        }
    }
#endif /* !BCMDBUS */

    dhd_state |= DHD_ATTACH_STATE_THREADS_CREATED;

#if defined(CONFIG_PM_SLEEP)
    if (!dhd_pm_notifier_registered) {
        dhd_pm_notifier_registered = TRUE;
        dhd->pm_notifier.notifier_call = dhd_pm_callback;
        dhd->pm_notifier.priority = 0xA;
        register_pm_notifier(&dhd->pm_notifier);
    }

#endif /* CONFIG_PM_SLEEP */

#if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND)
    dhd->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 0x14;
    dhd->early_suspend.suspend = dhd_early_suspend;
    dhd->early_suspend.resume = dhd_late_resume;
    register_early_suspend(&dhd->early_suspend);
    dhd_state |= DHD_ATTACH_STATE_EARLYSUSPEND_DONE;
#endif /* CONFIG_HAS_EARLYSUSPEND && DHD_USE_EARLYSUSPEND */

#ifdef ARP_OFFLOAD_SUPPORT
    dhd->pend_ipaddr = 0;
    if (!dhd_inetaddr_notifier_registered) {
        dhd_inetaddr_notifier_registered = TRUE;
        register_inetaddr_notifier(&dhd_inetaddr_notifier);
    }
#endif /* ARP_OFFLOAD_SUPPORT */

#if defined(CONFIG_IPV6) && defined(IPV6_NDO_SUPPORT)
    if (!dhd_inet6addr_notifier_registered) {
        dhd_inet6addr_notifier_registered = TRUE;
        register_inet6addr_notifier(&dhd_inet6addr_notifier);
    }
#endif /* CONFIG_IPV6 && IPV6_NDO_SUPPORT */
    dhd->dhd_deferred_wq = dhd_deferred_work_init((void *)dhd);
    INIT_WORK(&dhd->dhd_hang_process_work, dhd_hang_process);
#ifdef DEBUG_CPU_FREQ
    dhd->new_freq = alloc_percpu(int);
    dhd->freq_trans.notifier_call = dhd_cpufreq_notifier;
    cpufreq_register_notifier(&dhd->freq_trans, CPUFREQ_TRANSITION_NOTIFIER);
#endif // endif
#ifdef DHDTCPACK_SUPPRESS
#ifdef BCMSDIO
    dhd_tcpack_suppress_set(&dhd->pub, TCPACK_SUP_DELAYTX);
#elif defined(BCMPCIE)
        dhd_tcpack_suppress_set(&dhd->pub, TCPACK_SUP_HOLD);
#else
        dhd_tcpack_suppress_set(&dhd->pub, TCPACK_SUP_OFF);
#endif /* BCMSDIO */
#endif /* DHDTCPACK_SUPPRESS */

#if defined(BCM_DNGL_EMBEDIMAGE) || defined(BCM_REQUEST_FW)
#endif /* defined(BCM_DNGL_EMBEDIMAGE) || defined(BCM_REQUEST_FW) */

#ifdef DHD_DEBUG_PAGEALLOC
    register_page_corrupt_cb(dhd_page_corrupt_cb, &dhd->pub);
#endif /* DHD_DEBUG_PAGEALLOC */

#if defined(DHD_LB)

    dhd_lb_set_default_cpus(dhd);
    DHD_LB_STATS_INIT(&dhd->pub);

    /* Initialize the CPU Masks */
    if (dhd_cpumasks_init(dhd) == 0) {
        /* Now we have the current CPU maps, run through candidacy */
        dhd_select_cpu_candidacy(dhd);

        /* Register the call backs to CPU Hotplug sub-system */
        dhd_register_cpuhp_callback(dhd);
    } else {
        /*
         * We are unable to initialize CPU masks, so candidacy algorithm
         * won't run, but still Load Balancing will be honoured based
         * on the CPUs allocated for a given job statically during init
         */
        dhd->cpu_notifier.notifier_call = NULL;
        DHD_ERROR(
            ("%s():dhd_cpumasks_init failed CPUs for JOB would be static\n",
             __FUNCTION__));
    }

#ifdef DHD_LB_TXP
#ifdef DHD_LB_TXP_DEFAULT_ENAB
    /* Trun ON the feature by default */
    atomic_set(&dhd->lb_txp_active, 1);
#else
    /* Trun OFF the feature by default */
    atomic_set(&dhd->lb_txp_active, 0);
#endif /* DHD_LB_TXP_DEFAULT_ENAB */
#endif /* DHD_LB_TXP */

#ifdef DHD_LB_RXP
    /* Trun ON the feature by default */
    atomic_set(&dhd->lb_rxp_active, 1);
#endif /* DHD_LB_RXP */

    /* Initialize the Load Balancing Tasklets and Napi object */
#if defined(DHD_LB_TXC)
    tasklet_init(&dhd->tx_compl_tasklet, dhd_lb_tx_compl_handler,
                 (ulong)(&dhd->pub));
    INIT_WORK(&dhd->tx_compl_dispatcher_work, dhd_tx_compl_dispatcher_fn);
    DHD_INFO(("%s load balance init tx_compl_tasklet\n", __FUNCTION__));
#endif /* DHD_LB_TXC */
#if defined(DHD_LB_RXC)
    tasklet_init(&dhd->rx_compl_tasklet, dhd_lb_rx_compl_handler,
                 (ulong)(&dhd->pub));
    INIT_WORK(&dhd->rx_compl_dispatcher_work, dhd_rx_compl_dispatcher_fn);
    DHD_INFO(("%s load balance init rx_compl_tasklet\n", __FUNCTION__));
#endif /* DHD_LB_RXC */

#if defined(DHD_LB_RXP)
    __skb_queue_head_init(&dhd->rx_pend_queue);
    skb_queue_head_init(&dhd->rx_napi_queue);
    /* Initialize the work that dispatches NAPI job to a given core */
    INIT_WORK(&dhd->rx_napi_dispatcher_work, dhd_rx_napi_dispatcher_fn);
    DHD_INFO(("%s load balance init rx_napi_queue\n", __FUNCTION__));
#endif /* DHD_LB_RXP */

#if defined(DHD_LB_TXP)
    INIT_WORK(&dhd->tx_dispatcher_work, dhd_tx_dispatcher_work);
    skb_queue_head_init(&dhd->tx_pend_queue);
    /* Initialize the work that dispatches TX job to a given core */
    tasklet_init(&dhd->tx_tasklet, dhd_lb_tx_handler, (ulong)(dhd));
    DHD_INFO(("%s load balance init tx_pend_queue\n", __FUNCTION__));
#endif /* DHD_LB_TXP */

    dhd_state |= DHD_ATTACH_STATE_LB_ATTACH_DONE;
#endif /* DHD_LB */

#if defined(DNGL_AXI_ERROR_LOGGING) && defined(DHD_USE_WQ_FOR_DNGL_AXI_ERROR)
    INIT_WORK(&dhd->axi_error_dispatcher_work, dhd_axi_error_dispatcher_fn);
#endif /* DNGL_AXI_ERROR_LOGGING && DHD_USE_WQ_FOR_DNGL_AXI_ERROR */

#if defined(BCMPCIE)
    dhd->pub.extended_trap_data = MALLOCZ(osh, BCMPCIE_EXT_TRAP_DATA_MAXLEN);
    if (dhd->pub.extended_trap_data == NULL) {
        DHD_ERROR(("%s: Failed to alloc extended_trap_data\n", __FUNCTION__));
    }
#ifdef DNGL_AXI_ERROR_LOGGING
    dhd->pub.axi_err_dump = MALLOCZ(osh, sizeof(dhd_axi_error_dump_t));
    if (dhd->pub.axi_err_dump == NULL) {
        DHD_ERROR(("%s: Failed to alloc axi_err_dump\n", __FUNCTION__));
    }
#endif /* DNGL_AXI_ERROR_LOGGING */
#endif /* BCMPCIE && ETD */

#ifdef SHOW_LOGTRACE
    if (dhd_init_logtrace_process(dhd) != BCME_OK) {
        goto fail;
    }
#endif /* SHOW_LOGTRACE */

    DHD_SSSR_MEMPOOL_INIT(&dhd->pub);

#ifdef EWP_EDL
    if (host_edl_support) {
        if (DHD_EDL_MEM_INIT(&dhd->pub) != BCME_OK) {
            host_edl_support = FALSE;
        }
    }
#endif /* EWP_EDL */

    (void)dhd_sysfs_init(dhd);

#ifdef WL_NATOE
    /* Open Netlink socket for NF_CONNTRACK notifications */
    dhd->pub.nfct = dhd_ct_open(
        &dhd->pub, NFNL_SUBSYS_CTNETLINK | NFNL_SUBSYS_CTNETLINK_EXP, CT_ALL);
#endif /* WL_NATOE */

    dhd_state |= DHD_ATTACH_STATE_DONE;
    dhd->dhd_state = dhd_state;

    dhd_found++;

#ifdef CSI_SUPPORT
    dhd_csi_init(&dhd->pub);
#endif /* CSI_SUPPORT */

#ifdef DHD_DUMP_MNGR
    dhd->pub.dump_file_manage = (dhd_dump_file_manage_t *)MALLOCZ(
        dhd->pub.osh, sizeof(dhd_dump_file_manage_t));
    if (unlikely(!dhd->pub.dump_file_manage)) {
        DHD_ERROR(("%s(): could not allocate memory for - "
                   "dhd_dump_file_manage_t\n",
                   __FUNCTION__));
    }
#endif /* DHD_DUMP_MNGR */
#ifdef DHD_FW_COREDUMP
    /* Set memdump default values */
    dhd->pub.memdump_enabled = DUMP_MEMFILE_BUGON;
    /* Check the memdump capability */
    dhd_get_memdump_info(&dhd->pub);
#endif /* DHD_FW_COREDUMP */

#ifdef DHD_ERPOM
    if (enable_erpom) {
        pom_handler = &dhd->pub.pom_wlan_handler;
        pom_handler->func_id = WLAN_FUNC_ID;
        pom_handler->handler = (void *)g_dhd_pub;
        pom_handler->power_off = dhd_wlan_power_off_handler;
        pom_handler->power_on = dhd_wlan_power_on_handler;

        dhd->pub.pom_func_register = NULL;
        dhd->pub.pom_func_deregister = NULL;
        dhd->pub.pom_toggle_reg_on = NULL;

        dhd->pub.pom_func_register = symbol_get(pom_func_register);
        dhd->pub.pom_func_deregister = symbol_get(pom_func_deregister);
        dhd->pub.pom_toggle_reg_on = symbol_get(pom_toggle_reg_on);

        symbol_put(pom_func_register);
        symbol_put(pom_func_deregister);
        symbol_put(pom_toggle_reg_on);

        if (!dhd->pub.pom_func_register || !dhd->pub.pom_func_deregister ||
            !dhd->pub.pom_toggle_reg_on) {
            DHD_ERROR(("%s, enable_erpom enabled through module parameter but "
                       "POM is not loaded\n",
                       __FUNCTION__));
            ASSERT(0);
            goto fail;
        }
        dhd->pub.pom_func_register(pom_handler);
        dhd->pub.enable_erpom = TRUE;
    }
#endif /* DHD_ERPOM */
    return &dhd->pub;

fail:
    if (dhd_state >= DHD_ATTACH_STATE_DHD_ALLOC) {
        DHD_TRACE(("%s: Calling dhd_detach dhd_state 0x%x &dhd->pub %p\n",
                   __FUNCTION__, dhd_state, &dhd->pub));
        dhd->dhd_state = dhd_state;
        dhd_detach(&dhd->pub);
        dhd_free(&dhd->pub);
    }

dhd_null_flag:
    return NULL;
}

int dhd_get_fw_mode(dhd_info_t *dhdinfo)
{
    if (strstr(dhdinfo->fw_path, "_apsta") != NULL) {
        return DHD_FLAG_HOSTAP_MODE;
    }
    if (strstr(dhdinfo->fw_path, "_p2p") != NULL) {
        return DHD_FLAG_P2P_MODE;
    }
    if (strstr(dhdinfo->fw_path, "_ibss") != NULL) {
        return DHD_FLAG_IBSS_MODE;
    }
    if (strstr(dhdinfo->fw_path, "_mfg") != NULL) {
        return DHD_FLAG_MFG_MODE;
    }

    return DHD_FLAG_STA_MODE;
}

int dhd_bus_get_fw_mode(dhd_pub_t *dhdp)
{
    return dhd_get_fw_mode(dhdp->info);
}

extern char *nvram_get(const char *name);
bool dhd_update_fw_nv_path(dhd_info_t *dhdinfo)
{
    int fw_len;
    int nv_len;
    int clm_len;
    int conf_len;
    const char *fw = NULL;
    const char *nv = NULL;
    const char *clm = NULL;
    const char *conf = NULL;
#ifdef DHD_UCODE_DOWNLOAD
    int uc_len;
    const char *uc = NULL;
#endif /* DHD_UCODE_DOWNLOAD */
    wifi_adapter_info_t *adapter = dhdinfo->adapter;
    int fw_path_len = sizeof(dhdinfo->fw_path);
    int nv_path_len = sizeof(dhdinfo->nv_path);

    /* Update firmware and nvram path. The path may be from adapter info or
     * module parameter The path from adapter info is used for initialization
     * only (as it won't change).
     *
     * The firmware_path/nvram_path module parameter may be changed by the
     * system at run time. When it changes we need to copy it to
     * dhdinfo->fw_path. Also OHOS private command may change
     * dhdinfo->fw_path. As such we need to clear the path info in module
     * parameter after it is copied. We won't update the path until the module
     * parameter is changed again (first character is not '\0')
     */

#ifdef CONFIG_BCMDHD_FW_PATH
    fw = VENDOR_PATH CONFIG_BCMDHD_FW_PATH;
#endif /* CONFIG_BCMDHD_FW_PATH */
#ifdef CONFIG_BCMDHD_NVRAM_PATH
    nv = VENDOR_PATH CONFIG_BCMDHD_NVRAM_PATH;
#endif /* CONFIG_BCMDHD_NVRAM_PATH */
       //	}

    /* check if we need to initialize the path */
    if (dhdinfo->fw_path[0] == '\0') {
        if (adapter && adapter->fw_path && adapter->fw_path[0] != '\0') {
            fw = adapter->fw_path;
        }
    }
    if (dhdinfo->nv_path[0] == '\0') {
        if (adapter && adapter->nv_path && adapter->nv_path[0] != '\0') {
            nv = adapter->nv_path;
        }
    }
    if (dhdinfo->clm_path[0] == '\0') {
        if (adapter && adapter->clm_path && adapter->clm_path[0] != '\0') {
            clm = adapter->clm_path;
        }
    }
    if (dhdinfo->conf_path[0] == '\0') {
        if (adapter && adapter->conf_path && adapter->conf_path[0] != '\0') {
            conf = adapter->conf_path;
        }
    }

    /* Use module parameter if it is valid, EVEN IF the path has not been
     * initialized
     *
     * need a solution for multi-chip, can't use the same firmware for all
     * chips
     */
    if (firmware_path[0] != '\0') {
        fw = firmware_path;
    }

    if (nvram_path[0] != '\0') {
        nv = nvram_path;
    }
    if (clm_path[0] != '\0') {
        clm = clm_path;
    }
    if (config_path[0] != '\0') {
        conf = config_path;
    }

#ifdef DHD_UCODE_DOWNLOAD
    if (ucode_path[0] != '\0') {
        uc = ucode_path;
    }
#endif /* DHD_UCODE_DOWNLOAD */

    if (fw && fw[0] != '\0') {
        fw_len = strlen(fw);
        if (fw_len >= fw_path_len) {
            DHD_ERROR(("fw path len exceeds max len of dhdinfo->fw_path\n"));
            return FALSE;
        }
        strncpy(dhdinfo->fw_path, fw, fw_path_len);
        if (dhdinfo->fw_path[fw_len - 1] == '\n') {
            dhdinfo->fw_path[fw_len - 1] = '\0';
        }
    }
    if (nv && nv[0] != '\0') {
        nv_len = strlen(nv);
        if (nv_len >= nv_path_len) {
            DHD_ERROR(("nvram path len exceeds max len of dhdinfo->nv_path\n"));
            return FALSE;
        }
        memset(dhdinfo->nv_path, 0, nv_path_len);
        strncpy(dhdinfo->nv_path, nv, nv_path_len);
        dhdinfo->nv_path[nv_len] = '\0';
#ifdef DHD_USE_SINGLE_NVRAM_FILE
        /* Remove "_net" or "_mfg" tag from current nvram path */
        {
            char *nvram_tag = "nvram_";
            char *ext_tag = ".txt";
            char *sp_nvram = strnstr(dhdinfo->nv_path, nvram_tag, nv_path_len);
            bool valid_buf =
                sp_nvram &&
                ((uint32)(sp_nvram + strlen(nvram_tag) + strlen(ext_tag) -
                          dhdinfo->nv_path) <= nv_path_len);
            if (valid_buf) {
                char *sp = sp_nvram + strlen(nvram_tag) - 1;
                uint32 padding_size =
                    (uint32)(dhdinfo->nv_path + nv_path_len - sp);
                memset(sp, 0, padding_size);
                strncat(dhdinfo->nv_path, ext_tag, strlen(ext_tag));
                nv_len = strlen(dhdinfo->nv_path);
                DHD_INFO(("%s: new nvram path = %s\n", __FUNCTION__,
                          dhdinfo->nv_path));
            } else if (sp_nvram) {
                DHD_ERROR(("%s: buffer space for nvram path is not enough\n",
                           __FUNCTION__));
                return FALSE;
            } else {
                DHD_ERROR(("%s: Couldn't find the nvram tag. current"
                           " nvram path = %s\n",
                           __FUNCTION__, dhdinfo->nv_path));
            }
        }
#endif /* DHD_USE_SINGLE_NVRAM_FILE */
        if (dhdinfo->nv_path[nv_len - 1] == '\n') {
            dhdinfo->nv_path[nv_len - 1] = '\0';
        }
    }
    if (clm && clm[0] != '\0') {
        clm_len = strlen(clm);
        if (clm_len >= sizeof(dhdinfo->clm_path)) {
            DHD_ERROR(("clm path len exceeds max len of dhdinfo->clm_path\n"));
            return FALSE;
        }
        strncpy(dhdinfo->clm_path, clm, sizeof(dhdinfo->clm_path));
        if (dhdinfo->clm_path[clm_len - 1] == '\n') {
            dhdinfo->clm_path[clm_len - 1] = '\0';
        }
    }
    if (conf && conf[0] != '\0') {
        conf_len = strlen(conf);
        if (conf_len >= sizeof(dhdinfo->conf_path)) {
            DHD_ERROR(
                ("config path len exceeds max len of dhdinfo->conf_path\n"));
            return FALSE;
        }
        strncpy(dhdinfo->conf_path, conf, sizeof(dhdinfo->conf_path));
        if (dhdinfo->conf_path[conf_len - 1] == '\n') {
            dhdinfo->conf_path[conf_len - 1] = '\0';
        }
    }
#ifdef DHD_UCODE_DOWNLOAD
    if (uc && uc[0] != '\0') {
        uc_len = strlen(uc);
        if (uc_len >= sizeof(dhdinfo->uc_path)) {
            DHD_ERROR(("uc path len exceeds max len of dhdinfo->uc_path\n"));
            return FALSE;
        }
        strncpy(dhdinfo->uc_path, uc, sizeof(dhdinfo->uc_path));
        if (dhdinfo->uc_path[uc_len - 1] == '\n') {
            dhdinfo->uc_path[uc_len - 1] = '\0';
        }
    }
#endif /* DHD_UCODE_DOWNLOAD */

#ifdef DHD_UCODE_DOWNLOAD
    ucode_path[0] = '\0';
    DHD_ERROR(("ucode path: %s\n", dhdinfo->uc_path));
#endif /* DHD_UCODE_DOWNLOAD */

    /* fw_path and nv_path are not mandatory for BCMEMBEDIMAGE */
    if (dhdinfo->fw_path[0] == '\0') {
        DHD_ERROR(("firmware path not found\n"));
        return FALSE;
    }
    if (dhdinfo->nv_path[0] == '\0') {
        DHD_ERROR(("nvram path not found\n"));
        return FALSE;
    }

    return TRUE;
}

#if defined(BT_OVER_SDIO)
extern bool dhd_update_btfw_path(dhd_info_t *dhdinfo, char *btfw_path)
{
    int fw_len;
    const char *fw = NULL;
    wifi_adapter_info_t *adapter = dhdinfo->adapter;

    /* Update bt firmware path. The path may be from adapter info or module
     * parameter The path from adapter info is used for initialization only (as
     * it won't change).
     *
     * The btfw_path module parameter may be changed by the system at run
     * time. When it changes we need to copy it to dhdinfo->btfw_path. Also
     * OHOS private command may change dhdinfo->btfw_path. As such we need to
     * clear the path info in module parameter after it is copied. We won't
     * update the path until the module parameter is changed again (first
     * character is not '\0')
     */

    /* set default firmware and nvram path for built-in type driver */
    if (!dhd_download_fw_on_driverload) {
#ifdef CONFIG_BCMDHD_BTFW_PATH
        fw = CONFIG_BCMDHD_BTFW_PATH;
#endif /* CONFIG_BCMDHD_FW_PATH */
    }

    /* check if we need to initialize the path */
    if (dhdinfo->btfw_path[0] == '\0') {
        if (adapter && adapter->btfw_path && adapter->btfw_path[0] != '\0') {
            fw = adapter->btfw_path;
        }
    }

    /* Use module parameter if it is valid, EVEN IF the path has not been
     * initialized
     */
    if (btfw_path[0] != '\0') {
        fw = btfw_path;
    }

    if (fw && fw[0] != '\0') {
        fw_len = strlen(fw);
        if (fw_len >= sizeof(dhdinfo->btfw_path)) {
            DHD_ERROR(("fw path len exceeds max len of dhdinfo->btfw_path\n"));
            return FALSE;
        }
        strncpy(dhdinfo->btfw_path, fw, sizeof(dhdinfo->btfw_path));
        if (dhdinfo->btfw_path[fw_len - 1] == '\n') {
            dhdinfo->btfw_path[fw_len - 1] = '\0';
        }
    }

    /* clear the path in module parameter */
    btfw_path[0] = '\0';

    if (dhdinfo->btfw_path[0] == '\0') {
        DHD_ERROR(("bt firmware path not found\n"));
        return FALSE;
    }

    return TRUE;
}
#endif /* defined (BT_OVER_SDIO) */

#if defined(BT_OVER_SDIO)
wlan_bt_handle_t dhd_bt_get_pub_hndl(void)
{
    DHD_ERROR(("%s: g_dhd_pub %p\n", __FUNCTION__, g_dhd_pub));
    /* assuming that dhd_pub_t type pointer is available from a global variable
     */
    return (wlan_bt_handle_t)g_dhd_pub;
}
EXPORT_SYMBOL(dhd_bt_get_pub_hndl);

int dhd_download_btfw(wlan_bt_handle_t handle, char *btfw_path)
{
    int ret = -1;
    dhd_pub_t *dhdp = (dhd_pub_t *)handle;
    dhd_info_t *dhd = (dhd_info_t *)dhdp->info;

    /* Download BT firmware image to the dongle */
    if (dhd->pub.busstate == DHD_BUS_DATA &&
        dhd_update_btfw_path(dhd, btfw_path)) {
        DHD_INFO(
            ("%s: download btfw from: %s\n", __FUNCTION__, dhd->btfw_path));
        ret = dhd_bus_download_btfw(dhd->pub.bus, dhd->pub.osh, dhd->btfw_path);
        if (ret < 0) {
            DHD_ERROR(("%s: failed to download btfw from: %s\n", __FUNCTION__,
                       dhd->btfw_path));
            return ret;
        }
    }
    return ret;
}
EXPORT_SYMBOL(dhd_download_btfw);
#endif /* defined (BT_OVER_SDIO) */

#ifndef BCMDBUS
int dhd_bus_start(dhd_pub_t *dhdp)
{
    int ret = -1;
    dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
    unsigned long flags;

#if defined(DHD_DEBUG) && defined(BCMSDIO)
    int fw_download_start = 0, fw_download_end = 0, f2_sync_start = 0,
        f2_sync_end = 0;
#endif /* DHD_DEBUG && BCMSDIO */
    ASSERT(dhd);

    DHD_TRACE(("Enter %s:\n", __FUNCTION__));
    dhdp->dongle_trap_occured = 0;
#ifdef DHD_SSSR_DUMP
    /* Flag to indicate sssr dump is collected */
    dhdp->sssr_dump_collected = 0;
#endif /* DHD_SSSR_DUMP */
    dhdp->iovar_timeout_occured = 0;
#ifdef PCIE_FULL_DONGLE
    dhdp->d3ack_timeout_occured = 0;
    dhdp->livelock_occured = 0;
    dhdp->pktid_audit_failed = 0;
#endif /* PCIE_FULL_DONGLE */
    dhd->pub.iface_op_failed = 0;
    dhd->pub.scan_timeout_occurred = 0;
    dhd->pub.scan_busy_occurred = 0;
    /* Clear induced error during initialize */
    dhd->pub.dhd_induce_error = DHD_INDUCE_ERROR_CLEAR;

    /* set default value for now. Will be updated again in dhd_preinit_ioctls()
     * after querying FW
     */
    dhdp->event_log_max_sets = NUM_EVENT_LOG_SETS;
    dhdp->event_log_max_sets_queried = FALSE;
    dhdp->smmu_fault_occurred = 0;
#ifdef DNGL_AXI_ERROR_LOGGING
    dhdp->axi_error = FALSE;
#endif /* DNGL_AXI_ERROR_LOGGING */

    DHD_PERIM_LOCK(dhdp);
    /* try to download image and nvram to the dongle */
    if (dhd->pub.busstate == DHD_BUS_DOWN && dhd_update_fw_nv_path(dhd)) {
        /* Indicate FW Download has not yet done */
        dhd->pub.fw_download_status = FW_DOWNLOAD_IN_PROGRESS;
        DHD_INFO(("%s download fw %s, nv %s, conf %s\n", __FUNCTION__,
                  dhd->fw_path, dhd->nv_path, dhd->conf_path));
#if defined(DHD_DEBUG) && defined(BCMSDIO)
        fw_download_start = OSL_SYSUPTIME();
#endif /* DHD_DEBUG && BCMSDIO */
        ret = dhd_bus_download_firmware(dhd->pub.bus, dhd->pub.osh,
                                        dhd->fw_path, dhd->nv_path,
                                        dhd->clm_path, dhd->conf_path);
#if defined(DHD_DEBUG) && defined(BCMSDIO)
        fw_download_end = OSL_SYSUPTIME();
#endif /* DHD_DEBUG && BCMSDIO */
        if (ret < 0) {
            DHD_ERROR(("%s: failed to download firmware %s\n", __FUNCTION__,
                       dhd->fw_path));
            DHD_PERIM_UNLOCK(dhdp);
            return ret;
        }
        /* Indicate FW Download has succeeded */
        dhd->pub.fw_download_status = FW_DOWNLOAD_DONE;
    }
    if (dhd->pub.busstate != DHD_BUS_LOAD) {
        DHD_PERIM_UNLOCK(dhdp);
        return -ENETDOWN;
    }

#ifdef BCMSDIO
    dhd_os_sdlock(dhdp);
#endif /* BCMSDIO */

    /* Start the watchdog timer */
    dhd->pub.tickcnt = 0;
    dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);

    /* Bring up the bus */
    if ((ret = dhd_bus_init(&dhd->pub, FALSE)) != 0) {
        DHD_ERROR(("%s, dhd_bus_init failed %d\n", __FUNCTION__, ret));
#ifdef BCMSDIO
        dhd_os_sdunlock(dhdp);
#endif /* BCMSDIO */
        DHD_PERIM_UNLOCK(dhdp);
        return ret;
    }
    DHD_ENABLE_RUNTIME_PM(&dhd->pub);

#ifdef DHD_ULP
    dhd_ulp_set_ulp_state(dhdp, DHD_ULP_DISABLED);
#endif /* DHD_ULP */
#if defined(OOB_INTR_ONLY) ||                        \
    defined(BCMPCIE_OOB_HOST_WAKE)
    /* Host registration for OOB interrupt */
    if (dhd_bus_oob_intr_register(dhdp)) {
        /* deactivate timer and wait for the handler to finish */
#if !defined(BCMPCIE_OOB_HOST_WAKE)
        DHD_GENERAL_LOCK(&dhd->pub, flags);
        dhd->wd_timer_valid = FALSE;
        DHD_GENERAL_UNLOCK(&dhd->pub, flags);
        del_timer_sync(&dhd->timer);

#endif /* !BCMPCIE_OOB_HOST_WAKE */
        DHD_DISABLE_RUNTIME_PM(&dhd->pub);
        DHD_PERIM_UNLOCK(dhdp);
        DHD_ERROR(("%s Host failed to register for OOB\n", __FUNCTION__));
        DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
        return -ENODEV;
    }

#if defined(BCMPCIE_OOB_HOST_WAKE)
    dhd_bus_oob_intr_set(dhdp, TRUE);
#else
    /* Enable oob at firmware */
    dhd_enable_oob_intr(dhd->pub.bus, TRUE);
#endif /* BCMPCIE_OOB_HOST_WAKE */
#elif defined(FORCE_WOWLAN)
        /* Enable oob at firmware */
        dhd_enable_oob_intr(dhd->pub.bus, TRUE);
#endif /* OOB_INTR_ONLY || BCMPCIE_OOB_HOST_WAKE */
#ifdef PCIE_FULL_DONGLE
    {
        /* max_h2d_rings includes H2D common rings */
        uint32 max_h2d_rings = dhd_bus_max_h2d_queues(dhd->pub.bus);

        DHD_ERROR(
            ("%s: Initializing %u h2drings\n", __FUNCTION__, max_h2d_rings));
        if ((ret = dhd_flow_rings_init(&dhd->pub, max_h2d_rings)) != BCME_OK) {
#ifdef BCMSDIO
            dhd_os_sdunlock(dhdp);
#endif /* BCMSDIO */
            DHD_PERIM_UNLOCK(dhdp);
            return ret;
        }
    }
#endif /* PCIE_FULL_DONGLE */

    /* Do protocol initialization necessary for IOCTL/IOVAR */
    ret = dhd_prot_init(&dhd->pub);
    if (unlikely(ret) != BCME_OK) {
        DHD_PERIM_UNLOCK(dhdp);
        DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
        return ret;
    }

    /* If bus is not ready, can't come up */
    if (dhd->pub.busstate != DHD_BUS_DATA) {
        DHD_GENERAL_LOCK(&dhd->pub, flags);
        dhd->wd_timer_valid = FALSE;
        DHD_GENERAL_UNLOCK(&dhd->pub, flags);
        del_timer_sync(&dhd->timer);
        DHD_ERROR(("%s failed bus is not ready\n", __FUNCTION__));
        DHD_DISABLE_RUNTIME_PM(&dhd->pub);
#ifdef BCMSDIO
        dhd_os_sdunlock(dhdp);
#endif /* BCMSDIO */
        DHD_PERIM_UNLOCK(dhdp);
        DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
        return -ENODEV;
    }

#ifdef BCMSDIO
    dhd_os_sdunlock(dhdp);
#endif /* BCMSDIO */

    /* Bus is ready, query any dongle information */
#if defined(DHD_DEBUG) && defined(BCMSDIO)
    f2_sync_start = OSL_SYSUPTIME();
#endif /* DHD_DEBUG && BCMSDIO */
    if ((ret = dhd_sync_with_dongle(&dhd->pub)) < 0) {
        DHD_GENERAL_LOCK(&dhd->pub, flags);
        dhd->wd_timer_valid = FALSE;
        DHD_GENERAL_UNLOCK(&dhd->pub, flags);
        del_timer_sync(&dhd->timer);
        DHD_ERROR(("%s failed to sync with dongle\n", __FUNCTION__));
        DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
        DHD_PERIM_UNLOCK(dhdp);
        return ret;
    }

#if defined(CONFIG_SOC_EXYNOS8895) || defined(CONFIG_SOC_EXYNOS9810) ||        \
    defined(CONFIG_SOC_EXYNOS9820)
    DHD_ERROR(("%s: Enable L1ss EP side\n", __FUNCTION__));
    exynos_pcie_l1ss_ctrl(1, PCIE_L1SS_CTRL_WIFI);
#endif /* CONFIG_SOC_EXYNOS8895 || CONFIG_SOC_EXYNOS9810 ||                    \
          CONFIG_SOC_EXYNOS9820 */

#if defined(DHD_DEBUG) && defined(BCMSDIO)
    f2_sync_end = OSL_SYSUPTIME();
    DHD_ERROR(("Time taken for FW download and F2 ready is: %d msec\n",
               (fw_download_end - fw_download_start) +
                   (f2_sync_end - f2_sync_start)));
#endif /* DHD_DEBUG && BCMSDIO */

#ifdef ARP_OFFLOAD_SUPPORT
    if (dhd->pend_ipaddr) {
#ifdef AOE_IP_ALIAS_SUPPORT
        aoe_update_host_ipv4_table(&dhd->pub, dhd->pend_ipaddr, TRUE, 0);
#endif /* AOE_IP_ALIAS_SUPPORT */
        dhd->pend_ipaddr = 0;
    }
#endif /* ARP_OFFLOAD_SUPPORT */

    DHD_PERIM_UNLOCK(dhdp);

    return 0;
}
#endif /* !BCMDBUS */

#ifdef WLTDLS
int _dhd_tdls_enable(dhd_pub_t *dhd, bool tdls_on, bool auto_on,
                     struct ether_addr *mac)
{
    uint32 tdls = tdls_on;
    int ret = 0;
    uint32 tdls_auto_op = 0;
    uint32 tdls_idle_time = CUSTOM_TDLS_IDLE_MODE_SETTING;
    int32 tdls_rssi_high = CUSTOM_TDLS_RSSI_THRESHOLD_HIGH;
    int32 tdls_rssi_low = CUSTOM_TDLS_RSSI_THRESHOLD_LOW;
    uint32 tdls_pktcnt_high = CUSTOM_TDLS_PCKTCNT_THRESHOLD_HIGH;
    uint32 tdls_pktcnt_low = CUSTOM_TDLS_PCKTCNT_THRESHOLD_LOW;

    BCM_REFERENCE(mac);
    if (!FW_SUPPORTED(dhd, tdls)) {
        return BCME_ERROR;
    }

    if (dhd->tdls_enable == tdls_on) {
        goto auto_mode;
    }
    ret = dhd_iovar(dhd, 0, "tdls_enable", (char *)&tdls, sizeof(tdls), NULL, 0,
                    TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s: tdls %d failed %d\n", __FUNCTION__, tdls, ret));
        goto exit;
    }
    dhd->tdls_enable = tdls_on;
auto_mode:

    tdls_auto_op = auto_on;
    ret = dhd_iovar(dhd, 0, "tdls_auto_op", (char *)&tdls_auto_op,
                    sizeof(tdls_auto_op), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s: tdls_auto_op failed %d\n", __FUNCTION__, ret));
        goto exit;
    }

    if (tdls_auto_op) {
        ret = dhd_iovar(dhd, 0, "tdls_idle_time", (char *)&tdls_idle_time,
                        sizeof(tdls_idle_time), NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(("%s: tdls_idle_time failed %d\n", __FUNCTION__, ret));
            goto exit;
        }
        ret = dhd_iovar(dhd, 0, "tdls_rssi_high", (char *)&tdls_rssi_high,
                        sizeof(tdls_rssi_high), NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(("%s: tdls_rssi_high failed %d\n", __FUNCTION__, ret));
            goto exit;
        }
        ret = dhd_iovar(dhd, 0, "tdls_rssi_low", (char *)&tdls_rssi_low,
                        sizeof(tdls_rssi_low), NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(("%s: tdls_rssi_low failed %d\n", __FUNCTION__, ret));
            goto exit;
        }
        ret = dhd_iovar(dhd, 0, "tdls_trigger_pktcnt_high",
                        (char *)&tdls_pktcnt_high, sizeof(tdls_pktcnt_high),
                        NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(("%s: tdls_trigger_pktcnt_high failed %d\n", __FUNCTION__,
                       ret));
            goto exit;
        }
        ret = dhd_iovar(dhd, 0, "tdls_trigger_pktcnt_low",
                        (char *)&tdls_pktcnt_low, sizeof(tdls_pktcnt_low), NULL,
                        0, TRUE);
        if (ret < 0) {
            DHD_ERROR(
                ("%s: tdls_trigger_pktcnt_low failed %d\n", __FUNCTION__, ret));
            goto exit;
        }
    }

exit:
    return ret;
}

int dhd_tdls_enable(struct net_device *dev, bool tdls_on, bool auto_on,
                    struct ether_addr *mac)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    int ret = 0;
    if (dhd) {
        ret = _dhd_tdls_enable(&dhd->pub, tdls_on, auto_on, mac);
    } else {
        ret = BCME_ERROR;
    }
    return ret;
}

int dhd_tdls_set_mode(dhd_pub_t *dhd, bool wfd_mode)
{
    int ret = 0;
    bool auto_on = false;
    uint32 mode = wfd_mode;

#ifdef ENABLE_TDLS_AUTO_MODE
    if (wfd_mode) {
        auto_on = false;
    } else {
        auto_on = true;
    }
#else
        auto_on = false;
#endif /* ENABLE_TDLS_AUTO_MODE */
    ret = _dhd_tdls_enable(dhd, false, auto_on, NULL);
    if (ret < 0) {
        DHD_ERROR(("Disable tdls_auto_op failed. %d\n", ret));
        return ret;
    }

    ret = dhd_iovar(dhd, 0, "tdls_wfd_mode", (char *)&mode, sizeof(mode), NULL,
                    0, TRUE);
    if ((ret < 0) && (ret != BCME_UNSUPPORTED)) {
        DHD_ERROR(("%s: tdls_wfd_mode faile_wfd_mode %d\n", __FUNCTION__, ret));
        return ret;
    }

    ret = _dhd_tdls_enable(dhd, true, auto_on, NULL);
    if (ret < 0) {
        DHD_ERROR(("enable tdls_auto_op failed. %d\n", ret));
        return ret;
    }

    dhd->tdls_mode = mode;
    return ret;
}
#ifdef PCIE_FULL_DONGLE
int dhd_tdls_update_peer_info(dhd_pub_t *dhdp, wl_event_msg_t *event)
{
    dhd_pub_t *dhd_pub = dhdp;
    tdls_peer_node_t *cur = dhd_pub->peer_tbl.node;
    tdls_peer_node_t *new = NULL, *prev = NULL;
    int ifindex = dhd_ifname2idx(dhd_pub->info, event->ifname);
    uint8 *da = (uint8 *)&event->addr.octet[0];
    bool connect = FALSE;
    uint32 reason = ntoh32(event->reason);
    unsigned long flags;

    /* No handling needed for peer discovered reason */
    if (reason == WLC_E_TDLS_PEER_DISCOVERED) {
        return BCME_ERROR;
    }
    if (reason == WLC_E_TDLS_PEER_CONNECTED) {
        connect = TRUE;
    } else if (reason == WLC_E_TDLS_PEER_DISCONNECTED) {
        connect = FALSE;
    } else {
        DHD_ERROR(("%s: TDLS Event reason is unknown\n", __FUNCTION__));
        return BCME_ERROR;
    }
    if (ifindex == DHD_BAD_IF) {
        return BCME_ERROR;
    }

    if (connect) {
        while (cur != NULL) {
            if (!memcmp(da, cur->addr, ETHER_ADDR_LEN)) {
                DHD_ERROR(("%s: TDLS Peer exist already %d\n", __FUNCTION__,
                           __LINE__));
                return BCME_ERROR;
            }
            cur = cur->next;
        }

        new = MALLOC(dhd_pub->osh, sizeof(tdls_peer_node_t));
        if (new == NULL) {
            DHD_ERROR(("%s: Failed to allocate memory\n", __FUNCTION__));
            return BCME_ERROR;
        }
        memcpy(new->addr, da, ETHER_ADDR_LEN);
        DHD_TDLS_LOCK(&dhdp->tdls_lock, flags);
        new->next = dhd_pub->peer_tbl.node;
        dhd_pub->peer_tbl.node = new;
        dhd_pub->peer_tbl.tdls_peer_count++;
        DHD_TDLS_UNLOCK(&dhdp->tdls_lock, flags);
    } else {
        while (cur != NULL) {
            if (!memcmp(da, cur->addr, ETHER_ADDR_LEN)) {
                dhd_flow_rings_delete_for_peer(dhd_pub, (uint8)ifindex, da);
                DHD_TDLS_LOCK(&dhdp->tdls_lock, flags);
                if (prev) {
                    prev->next = cur->next;
                } else {
                    dhd_pub->peer_tbl.node = cur->next;
                }
                MFREE(dhd_pub->osh, cur, sizeof(tdls_peer_node_t));
                dhd_pub->peer_tbl.tdls_peer_count--;
                DHD_TDLS_UNLOCK(&dhdp->tdls_lock, flags);
                return BCME_OK;
            }
            prev = cur;
            cur = cur->next;
        }
        DHD_ERROR(("%s: TDLS Peer Entry Not found\n", __FUNCTION__));
    }
    return BCME_OK;
}
#endif /* PCIE_FULL_DONGLE */
#endif // endif

bool dhd_is_concurrent_mode(dhd_pub_t *dhd)
{
    if (!dhd) {
        return FALSE;
    }

    if (dhd->op_mode & DHD_FLAG_CONCURR_MULTI_CHAN_MODE) {
        return TRUE;
    } else if ((dhd->op_mode & DHD_FLAG_CONCURR_SINGLE_CHAN_MODE) ==
               DHD_FLAG_CONCURR_SINGLE_CHAN_MODE) {
        return TRUE;
    } else {
        return FALSE;
    }
}
#if !defined(AP) && defined(WLP2P)
/* The concurrent mode is enabled by default and the firmware name would
 * be fw_bcmdhd.bin. So we need to determine whether P2P is enabled in
 * the STA firmware and accordingly enable concurrent mode (Apply P2P
 * settings). SoftAP firmware would still be named as fw_bcmdhd_apsta.
 */
uint32 dhd_get_concurrent_capabilites(dhd_pub_t *dhd)
{
    int32 ret = 0;
    char buf[WLC_IOCTL_SMLEN];
    bool mchan_supported = FALSE;
    /* if dhd->op_mode is already set for HOSTAP and Manufacturing
     * test mode, that means we only will use the mode as it is
     */
    if (dhd->op_mode & (DHD_FLAG_HOSTAP_MODE | DHD_FLAG_MFG_MODE)) {
        return 0;
    }
    if (FW_SUPPORTED(dhd, vsdb)) {
        mchan_supported = TRUE;
    }
    if (!FW_SUPPORTED(dhd, p2p)) {
        DHD_TRACE(("Chip does not support p2p\n"));
        return 0;
    } else {
        /* Chip supports p2p but ensure that p2p is really implemented in
         * firmware or not */
        memset(buf, 0, sizeof(buf));
        ret =
            dhd_iovar(dhd, 0, "p2p", NULL, 0, (char *)&buf, sizeof(buf), FALSE);
        if (ret < 0) {
            DHD_ERROR(("%s: Get P2P failed (error=%d)\n", __FUNCTION__, ret));
            return 0;
        } else {
            if (buf[0] == 1) {
                /* By default, chip supports single chan concurrency,
                 * now lets check for mchan
                 */
                ret = DHD_FLAG_CONCURR_SINGLE_CHAN_MODE;
                if (mchan_supported) {
                    ret |= DHD_FLAG_CONCURR_MULTI_CHAN_MODE;
                }
                if (FW_SUPPORTED(dhd, rsdb)) {
                    ret |= DHD_FLAG_RSDB_MODE;
                }
#ifdef WL_SUPPORT_MULTIP2P
                if (FW_SUPPORTED(dhd, mp2p)) {
                    ret |= DHD_FLAG_MP2P_MODE;
                }
#endif /* WL_SUPPORT_MULTIP2P */
#if defined(WL_ENABLE_P2P_IF) || defined(WL_CFG80211_P2P_DEV_IF)
                return ret;
#else
                    return 0;
#endif /* WL_ENABLE_P2P_IF || WL_CFG80211_P2P_DEV_IF */
            }
        }
    }
    return 0;
}
#endif // endif

#if defined(WLADPS)

int dhd_enable_adps(dhd_pub_t *dhd, uint8 on)
{
    int i;
    int len;
    int ret = BCME_OK;

    bcm_iov_buf_t *iov_buf = NULL;
    wl_adps_params_v1_t *data = NULL;

    len = OFFSETOF(bcm_iov_buf_t, data) + sizeof(*data);
    iov_buf = MALLOC(dhd->osh, len);
    if (iov_buf == NULL) {
        DHD_ERROR(("%s - failed to allocate %d bytes for iov_buf\n",
                   __FUNCTION__, len));
        ret = BCME_NOMEM;
        goto exit;
    }

    iov_buf->version = WL_ADPS_IOV_VER;
    iov_buf->len = sizeof(*data);
    iov_buf->id = WL_ADPS_IOV_MODE;

    data = (wl_adps_params_v1_t *)iov_buf->data;
    data->version = ADPS_SUB_IOV_VERSION_1;
    data->length = sizeof(*data);
    data->mode = on;

    for (i = 1; i <= MAX_BANDS; i++) {
        data->band = i;
        ret = dhd_iovar(dhd, 0, "adps", (char *)iov_buf, len, NULL, 0, TRUE);
        if (ret < 0) {
            if (ret == BCME_UNSUPPORTED) {
                DHD_ERROR(("%s adps is not supported\n", __FUNCTION__));
                ret = BCME_OK;
                goto exit;
            } else {
                DHD_ERROR(("%s fail to set adps %s for band %d (%d)\n",
                           __FUNCTION__, on ? "On" : "Off", i, ret));
                goto exit;
            }
        }
    }

exit:
    if (iov_buf) {
        MFREE(dhd->osh, iov_buf, len);
        iov_buf = NULL;
    }
    return ret;
}
#endif // endif

int dhd_preinit_ioctls(dhd_pub_t *dhd)
{
    int ret = 0;
    char eventmask[WL_EVENTING_MASK_LEN];
    char iovbuf[WL_EVENTING_MASK_LEN +
                12]; /*  Room for "event_msgs" + '\0' + bitvec  */
    uint32 buf_key_b4_m4 = 1;
    uint8 msglen;
    eventmsgs_ext_t *eventmask_msg = NULL;
    uint32 event_log_max_sets = 0;
    char *iov_buf = NULL;
    int ret2 = 0;
    uint32 wnm_cap = 0;
#if defined(BCMSUP_4WAY_HANDSHAKE)
    uint32 sup_wpa = 1;
#endif /* BCMSUP_4WAY_HANDSHAKE */
#if defined(CUSTOM_AMPDU_BA_WSIZE)
    uint32 ampdu_ba_wsize = 0;
#endif // endif
#if defined(CUSTOM_AMPDU_MPDU)
    int32 ampdu_mpdu = 0;
#endif // endif
#if defined(CUSTOM_AMPDU_RELEASE)
    int32 ampdu_release = 0;
#endif // endif
#if defined(CUSTOM_AMSDU_AGGSF)
    int32 amsdu_aggsf = 0;
#endif // endif

#if defined(BCMSDIO) || defined(BCMDBUS)
#ifdef PROP_TXSTATUS
    int wlfc_enable = TRUE;
#ifndef DISABLE_11N
    uint32 hostreorder = 1;
    uint wl_down = 1;
#endif /* DISABLE_11N */
#endif /* PROP_TXSTATUS */
#endif /* BCMSDIO || BCMDBUS */
#ifndef PCIE_FULL_DONGLE
    uint32 wl_ap_isolate;
#endif /* PCIE_FULL_DONGLE */
    uint32 frameburst = CUSTOM_FRAMEBURST_SET;
    uint wnm_bsstrans_resp = 0;
#ifdef SUPPORT_SET_CAC
    uint32 cac = 1;
#endif /* SUPPORT_SET_CAC */

#ifdef DHD_ENABLE_LPC
    uint32 lpc = 1;
#endif /* DHD_ENABLE_LPC */
    uint power_mode = PM_FAST;
#if defined(BCMSDIO)
    uint32 dongle_align = DHD_SDALIGN;
    uint32 glom = CUSTOM_GLOM_SETTING;
#endif /* defined(BCMSDIO) */
#if defined(USE_WL_CREDALL)
    uint32 credall = 1;
#endif // endif
    uint bcn_timeout = CUSTOM_BCN_TIMEOUT;
    uint scancache_enab = TRUE;
#ifdef ENABLE_BCN_LI_BCN_WAKEUP
    uint32 bcn_li_bcn = 1;
#endif /* ENABLE_BCN_LI_BCN_WAKEUP */
    uint retry_max = CUSTOM_ASSOC_RETRY_MAX;
#if defined(ARP_OFFLOAD_SUPPORT)
    int arpoe = 0;
#endif // endif
    int scan_assoc_time = DHD_SCAN_ASSOC_ACTIVE_TIME;
    int scan_unassoc_time = DHD_SCAN_UNASSOC_ACTIVE_TIME;
    int scan_passive_time = DHD_SCAN_PASSIVE_TIME;
    char buf[WLC_IOCTL_SMLEN];
    char *ptr;
    uint32 listen_interval =
        CUSTOM_LISTEN_INTERVAL; /* Default Listen Interval in Beacons */
#if defined(DHD_8021X_DUMP) && defined(SHOW_LOGTRACE)
    wl_el_tag_params_t *el_tag = NULL;
#endif /* DHD_8021X_DUMP */
#ifdef ROAM_ENABLE
    uint roamvar = 0;
    int roam_trigger[2] = {CUSTOM_ROAM_TRIGGER_SETTING, WLC_BAND_ALL};
    int roam_scan_period[2] = {10, WLC_BAND_ALL};
    int roam_delta[2] = {CUSTOM_ROAM_DELTA_SETTING, WLC_BAND_ALL};
#ifdef ROAM_AP_ENV_DETECTION
    int roam_env_mode = AP_ENV_INDETERMINATE;
#endif /* ROAM_AP_ENV_DETECTION */
#ifdef FULL_ROAMING_SCAN_PERIOD_60_SEC
    int roam_fullscan_period = 60;
#else  /* FULL_ROAMING_SCAN_PERIOD_60_SEC */
        int roam_fullscan_period = 120;
#endif /* FULL_ROAMING_SCAN_PERIOD_60_SEC */
#ifdef DISABLE_BCNLOSS_ROAM
    uint roam_bcnloss_off = 1;
#endif /* DISABLE_BCNLOSS_ROAM */
#else
#ifdef DISABLE_BUILTIN_ROAM
    uint roamvar = 1;
#endif /* DISABLE_BUILTIN_ROAM */
#endif /* ROAM_ENABLE */

#if defined(SOFTAP)
    uint dtim = 1;
#endif // endif
#if (defined(AP) && !defined(WLP2P)) || (!defined(AP) && defined(WL_CFG80211))
    struct ether_addr p2p_ea;
#endif // endif
#ifdef BCMCCX
    uint32 ccx = 1;
#endif // endif
#ifdef SOFTAP_UAPSD_OFF
    uint32 wme_apsd = 0;
#endif /* SOFTAP_UAPSD_OFF */
#if (defined(AP) || defined(WLP2P)) && !defined(SOFTAP_AND_GC)
    uint32 apsta = 1; /* Enable APSTA mode */
#elif defined(SOFTAP_AND_GC)
    uint32 apsta = 0;
    int ap_mode = 1;
#endif /* (defined(AP) || defined(WLP2P)) && !defined(SOFTAP_AND_GC) */
#ifdef GET_CUSTOM_MAC_ENABLE
    struct ether_addr ea_addr;
    char hw_ether[62];
#endif /* GET_CUSTOM_MAC_ENABLE */
#ifdef OKC_SUPPORT
    uint32 okc = 1;
#endif // endif

#ifdef DISABLE_11N
    uint32 nmode = 0;
#endif /* DISABLE_11N */

#ifdef USE_WL_TXBF
    uint32 txbf = 1;
#endif /* USE_WL_TXBF */
#ifdef DISABLE_TXBFR
    uint32 txbf_bfr_cap = 0;
#endif /* DISABLE_TXBFR */
#ifdef AMPDU_VO_ENABLE
    struct ampdu_tid_control tid;
#endif // endif
#if defined(PROP_TXSTATUS)
#ifdef USE_WFA_CERT_CONF
    uint32 proptx = 0;
#endif /* USE_WFA_CERT_CONF */
#endif /* PROP_TXSTATUS */
#ifdef DHD_SET_FW_HIGHSPEED
    uint32 ack_ratio = 250;
    uint32 ack_ratio_depth = 64;
#endif /* DHD_SET_FW_HIGHSPEED */
#if defined(SUPPORT_2G_VHT) || defined(SUPPORT_5G_1024QAM_VHT)
    uint32 vht_features = 0; /* init to 0, will be set based on each support */
#endif                       /* SUPPORT_2G_VHT || SUPPORT_5G_1024QAM_VHT */
#ifdef DISABLE_11N_PROPRIETARY_RATES
    uint32 ht_features = 0;
#endif /* DISABLE_11N_PROPRIETARY_RATES */
#ifdef CUSTOM_PSPRETEND_THR
    uint32 pspretend_thr = CUSTOM_PSPRETEND_THR;
#endif // endif
#ifdef CUSTOM_EVENT_PM_WAKE
    uint32 pm_awake_thresh = CUSTOM_EVENT_PM_WAKE;
#endif /* CUSTOM_EVENT_PM_WAKE */
#ifdef DISABLE_PRUNED_SCAN
    uint32 scan_features = 0;
#endif /* DISABLE_PRUNED_SCAN */
#ifdef BCMPCIE_OOB_HOST_WAKE
    uint32 hostwake_oob = 0;
#endif /* BCMPCIE_OOB_HOST_WAKE */
#ifdef EVENT_LOG_RATE_HC
    /* threshold number of lines per second */
#define EVENT_LOG_RATE_HC_THRESHOLD 1000
    uint32 event_log_rate_hc = EVENT_LOG_RATE_HC_THRESHOLD;
#endif /* EVENT_LOG_RATE_HC */
    wl_wlc_version_t wlc_ver;

#ifdef PKT_FILTER_SUPPORT
    dhd_pkt_filter_enable = TRUE;
#ifdef APF
    dhd->apf_set = FALSE;
#endif /* APF */
#endif /* PKT_FILTER_SUPPORT */
    dhd->suspend_bcn_li_dtim = CUSTOM_SUSPEND_BCN_LI_DTIM;
#ifdef ENABLE_MAX_DTIM_IN_SUSPEND
    dhd->max_dtim_enable = TRUE;
#else
    dhd->max_dtim_enable = FALSE;
#endif /* ENABLE_MAX_DTIM_IN_SUSPEND */
    dhd->disable_dtim_in_suspend = FALSE;
#ifdef SUPPORT_SET_TID
    dhd->tid_mode = SET_TID_OFF;
    dhd->target_uid = 0;
    dhd->target_tid = 0;
#endif /* SUPPORT_SET_TID */
    DHD_TRACE(("Enter %s\n", __FUNCTION__));

#ifdef DHDTCPACK_SUPPRESS
    dhd_tcpack_suppress_set(dhd, dhd->conf->tcpack_sup_mode);
#endif
    dhd->op_mode = 0;

#if defined(CUSTOM_COUNTRY_CODE)
    /* clear AP flags */
    dhd->dhd_cflags &= ~WLAN_PLAT_AP_FLAG;
#endif /* CUSTOM_COUNTRY_CODE && (CUSTOMER_HW2 || BOARD_HIKEY) */

    /* query for 'ver' to get version info from firmware */
    memset(buf, 0, sizeof(buf));
    ptr = buf;
    ret = dhd_iovar(dhd, 0, "ver", NULL, 0, (char *)&buf, sizeof(buf), FALSE);
    if (ret < 0) {
        DHD_ERROR(("%s failed %d\n", __FUNCTION__, ret));
    } else {
        bcmstrtok(&ptr, "\n", 0);
        /* Print fw version info */
        strncpy(fw_version, buf, FW_VER_STR_LEN);
        fw_version[FW_VER_STR_LEN - 1] = '\0';
    }

    /* Set op_mode as MFG_MODE if WLTEST is present in "wl ver" */
    if (strstr(fw_version, "WLTEST") != NULL) {
        DHD_ERROR(
            ("%s: wl ver has WLTEST, setting op_mode as DHD_FLAG_MFG_MODE\n",
             __FUNCTION__));
        op_mode = DHD_FLAG_MFG_MODE;
    }

    if ((!op_mode && dhd_get_fw_mode(dhd->info) == DHD_FLAG_MFG_MODE) ||
        (op_mode == DHD_FLAG_MFG_MODE)) {
        dhd->op_mode = DHD_FLAG_MFG_MODE;
#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
        /* disable runtimePM by default in MFG mode. */
        pm_runtime_disable(dhd_bus_to_dev(dhd->bus));
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */
        /* Check and adjust IOCTL response timeout for Manufactring firmware */
        dhd_os_set_ioctl_resp_timeout(MFG_IOCTL_RESP_TIMEOUT);
        DHD_ERROR(("%s : Set IOCTL response time for Manufactring Firmware\n",
                   __FUNCTION__));
    } else {
        dhd_os_set_ioctl_resp_timeout(IOCTL_RESP_TIMEOUT);
        DHD_INFO(("%s : Set IOCTL response time.\n", __FUNCTION__));
    }
#ifdef BCMPCIE_OOB_HOST_WAKE
    ret = dhd_iovar(dhd, 0, "bus:hostwake_oob", NULL, 0, (char *)&hostwake_oob,
                    sizeof(hostwake_oob), FALSE);
    if (ret < 0) {
        DHD_ERROR(
            ("%s: hostwake_oob IOVAR not present, proceed\n", __FUNCTION__));
    } else {
        if (hostwake_oob == 0) {
            DHD_ERROR(("%s: hostwake_oob is not enabled in the NVRAM, STOP\n",
                       __FUNCTION__));
            ret = BCME_UNSUPPORTED;
            goto done;
        } else {
            DHD_ERROR(("%s: hostwake_oob enabled\n", __FUNCTION__));
        }
    }
#endif /* BCMPCIE_OOB_HOST_WAKE */

#ifdef DNGL_AXI_ERROR_LOGGING
    ret = dhd_iovar(dhd, 0, "axierror_logbuf_addr", NULL, 0,
                    (char *)&dhd->axierror_logbuf_addr,
                    sizeof(dhd->axierror_logbuf_addr), FALSE);
    if (ret < 0) {
        DHD_ERROR(("%s: axierror_logbuf_addr IOVAR not present, proceed\n",
                   __FUNCTION__));
        dhd->axierror_logbuf_addr = 0;
    } else {
        DHD_ERROR(("%s: axierror_logbuf_addr : 0x%x\n", __FUNCTION__,
                   dhd->axierror_logbuf_addr));
    }
#endif /* DNGL_AXI_ERROR_LOGGING */

#ifdef EVENT_LOG_RATE_HC
    ret = dhd_iovar(dhd, 0, "event_log_rate_hc", (char *)&event_log_rate_hc,
                    sizeof(event_log_rate_hc), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s event_log_rate_hc set failed %d\n", __FUNCTION__, ret));
    } else {
        DHD_ERROR(("%s event_log_rate_hc set with threshold:%d\n", __FUNCTION__,
                   event_log_rate_hc));
    }
#endif /* EVENT_LOG_RATE_HC */

#ifdef GET_CUSTOM_MAC_ENABLE
    memset(hw_ether, 0, sizeof(hw_ether));
    ret = wifi_platform_get_mac_addr(dhd->info->adapter, hw_ether, 0);
#ifdef GET_CUSTOM_MAC_FROM_CONFIG
    if (!memcmp(&ether_null, &dhd->conf->hw_ether, ETHER_ADDR_LEN)) {
        ret = 0;
    } else
#endif
        if (!ret) {
        memset(buf, 0, sizeof(buf));
#ifdef GET_CUSTOM_MAC_FROM_CONFIG
        memcpy(hw_ether, &dhd->conf->hw_ether, sizeof(dhd->conf->hw_ether));
#endif
        bcopy(hw_ether, ea_addr.octet, sizeof(struct ether_addr));
        bcm_mkiovar("cur_etheraddr", (void *)&ea_addr, ETHER_ADDR_LEN, buf,
                    sizeof(buf));
        ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, buf, sizeof(buf), TRUE, 0);
        if (ret < 0) {
            memset(buf, 0, sizeof(buf));
            bcm_mkiovar("hw_ether", hw_ether, sizeof(hw_ether), buf,
                        sizeof(buf));
            ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, buf, sizeof(buf), TRUE, 0);
            if (ret) {
                DHD_ERROR(("%s: can't set MAC address MAC=" MACDBG
                           ", error=%d\n",
                           __FUNCTION__, MAC2STRDBG(hw_ether), ret));
                prhex("MACPAD", &hw_ether[ETHER_ADDR_LEN],
                      sizeof(hw_ether) - ETHER_ADDR_LEN);
                ret = BCME_NOTUP;
                goto done;
            }
        }
    } else {
        DHD_ERROR(
            ("%s: can't get custom MAC address, ret=%d\n", __FUNCTION__, ret));
        ret = BCME_NOTUP;
        goto done;
    }
#endif /* GET_CUSTOM_MAC_ENABLE */
    /* Get the default device MAC address directly from firmware */
    memset(buf, 0, sizeof(buf));
    bcm_mkiovar("cur_etheraddr", 0, 0, buf, sizeof(buf));
    if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, buf, sizeof(buf), FALSE, 0)) <
        0) {
        DHD_ERROR(
            ("%s: can't get MAC address , error=%d\n", __FUNCTION__, ret));
        ret = BCME_NOTUP;
        goto done;
    }
    /* Update public MAC address after reading from Firmware */
    memcpy(dhd->mac.octet, buf, ETHER_ADDR_LEN);

    if ((ret = dhd_apply_default_clm(dhd, dhd->clm_path)) < 0) {
        DHD_ERROR(
            ("%s: CLM set failed. Abort initialization.\n", __FUNCTION__));
        goto done;
    }

    /* get a capabilities from firmware */
    {
        uint32 cap_buf_size = sizeof(dhd->fw_capabilities);
        memset(dhd->fw_capabilities, 0, cap_buf_size);
        ret = dhd_iovar(dhd, 0, "cap", NULL, 0, dhd->fw_capabilities,
                        (cap_buf_size - 1), FALSE);
        if (ret < 0) {
            DHD_ERROR(
                ("%s: Get Capability failed (error=%d)\n", __FUNCTION__, ret));
            return 0;
        }

        memmove(&dhd->fw_capabilities[1], dhd->fw_capabilities,
                (cap_buf_size - 1));
        dhd->fw_capabilities[0] = ' ';
        dhd->fw_capabilities[cap_buf_size - 0x2] = ' ';
        dhd->fw_capabilities[cap_buf_size - 1] = '\0';
    }

    if ((!op_mode && dhd_get_fw_mode(dhd->info) == DHD_FLAG_HOSTAP_MODE) ||
        (op_mode == DHD_FLAG_HOSTAP_MODE)) {
#ifdef SET_RANDOM_MAC_SOFTAP
        uint rand_mac;
#endif /* SET_RANDOM_MAC_SOFTAP */
        dhd->op_mode = DHD_FLAG_HOSTAP_MODE;
#if defined(ARP_OFFLOAD_SUPPORT)
        arpoe = 0;
#endif // endif
#ifdef PKT_FILTER_SUPPORT
        if (dhd_conf_get_insuspend(dhd, AP_FILTER_IN_SUSPEND)) {
            dhd_pkt_filter_enable = TRUE;
        } else {
            dhd_pkt_filter_enable = FALSE;
        }
#endif // endif
#ifdef SET_RANDOM_MAC_SOFTAP
        SRANDOM32((uint)jiffies);
        rand_mac = RANDOM32();
        iovbuf[0] =
            (unsigned char)(vendor_oui >> 0x10) | 0x02; /* local admin bit */
        iovbuf[1] = (unsigned char)(vendor_oui >> 0x8);
        iovbuf[0x2] = (unsigned char)vendor_oui;
        iovbuf[0x3] = (unsigned char)(rand_mac & 0x0F) | 0xF0;
        iovbuf[0x4] = (unsigned char)(rand_mac >> 0x8);
        iovbuf[0x5] = (unsigned char)(rand_mac >> 0x10);

        ret = dhd_iovar(dhd, 0, "cur_etheraddr", (char *)&iovbuf,
                        ETHER_ADDR_LEN, NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(
                ("%s: can't set MAC address , error=%d\n", __FUNCTION__, ret));
        } else {
            memcpy(dhd->mac.octet, iovbuf, ETHER_ADDR_LEN);
        }
#endif /* SET_RANDOM_MAC_SOFTAP */
#ifdef USE_DYNAMIC_F2_BLKSIZE
        dhdsdio_func_blocksize(dhd, 2, DYNAMIC_F2_BLKSIZE_FOR_NONLEGACY);
#endif /* USE_DYNAMIC_F2_BLKSIZE */
#ifdef SOFTAP_UAPSD_OFF
        ret = dhd_iovar(dhd, 0, "wme_apsd", (char *)&wme_apsd, sizeof(wme_apsd),
                        NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(
                ("%s: set wme_apsd 0 fail (error=%d)\n", __FUNCTION__, ret));
        }
#endif /* SOFTAP_UAPSD_OFF */
#if defined(CUSTOM_COUNTRY_CODE)
        /* set AP flag for specific country code of SOFTAP */
        dhd->dhd_cflags |= WLAN_PLAT_AP_FLAG | WLAN_PLAT_NODFS_FLAG;
#endif /* CUSTOM_COUNTRY_CODE && (CUSTOMER_HW2 || BOARD_HIKEY) */
    } else if ((!op_mode && dhd_get_fw_mode(dhd->info) == DHD_FLAG_MFG_MODE) ||
               (op_mode == DHD_FLAG_MFG_MODE)) {
#if defined(ARP_OFFLOAD_SUPPORT)
        arpoe = 0;
#endif /* ARP_OFFLOAD_SUPPORT */
#ifdef PKT_FILTER_SUPPORT
        dhd_pkt_filter_enable = FALSE;
#endif /* PKT_FILTER_SUPPORT */
        dhd->op_mode = DHD_FLAG_MFG_MODE;
#ifdef USE_DYNAMIC_F2_BLKSIZE
        dhdsdio_func_blocksize(dhd, 2, DYNAMIC_F2_BLKSIZE_FOR_NONLEGACY);
#endif /* USE_DYNAMIC_F2_BLKSIZE */
#ifndef CUSTOM_SET_ANTNPM
        if (FW_SUPPORTED(dhd, rsdb)) {
            wl_config_t rsdb_mode;
            memset(&rsdb_mode, 0, sizeof(rsdb_mode));
            ret = dhd_iovar(dhd, 0, "rsdb_mode", (char *)&rsdb_mode,
                            sizeof(rsdb_mode), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s Disable rsdb_mode is failed ret= %d\n",
                           __FUNCTION__, ret));
            }
        }
#endif /* !CUSTOM_SET_ANTNPM */
    } else {
        uint32 concurrent_mode = 0;
        if ((!op_mode && dhd_get_fw_mode(dhd->info) == DHD_FLAG_P2P_MODE) ||
            (op_mode == DHD_FLAG_P2P_MODE)) {
#if defined(ARP_OFFLOAD_SUPPORT)
            arpoe = 0;
#endif // endif
#ifdef PKT_FILTER_SUPPORT
            dhd_pkt_filter_enable = FALSE;
#endif // endif
            dhd->op_mode = DHD_FLAG_P2P_MODE;
        } else if ((!op_mode &&
                    dhd_get_fw_mode(dhd->info) == DHD_FLAG_IBSS_MODE) ||
                   (op_mode == DHD_FLAG_IBSS_MODE)) {
            dhd->op_mode = DHD_FLAG_IBSS_MODE;
        } else {
            dhd->op_mode = DHD_FLAG_STA_MODE;
        }
#if !defined(AP) && defined(WLP2P)
        if (dhd->op_mode != DHD_FLAG_IBSS_MODE &&
            (concurrent_mode = dhd_get_concurrent_capabilites(dhd))) {
#if defined(ARP_OFFLOAD_SUPPORT)
            arpoe = 1;
#endif // endif
            dhd->op_mode |= concurrent_mode;
        }

        /* Check if we are enabling p2p */
        if (dhd->op_mode & DHD_FLAG_P2P_MODE) {
            ret = dhd_iovar(dhd, 0, "apsta", (char *)&apsta, sizeof(apsta),
                            NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(
                    ("%s APSTA for P2P failed ret= %d\n", __FUNCTION__, ret));
            }

#if defined(SOFTAP_AND_GC)
            if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_AP, (char *)&ap_mode,
                                        sizeof(ap_mode), TRUE, 0)) < 0) {
                DHD_ERROR(("%s WLC_SET_AP failed %d\n", __FUNCTION__, ret));
            }
#endif // endif
            memcpy(&p2p_ea, &dhd->mac, ETHER_ADDR_LEN);
            ETHER_SET_LOCALADDR(&p2p_ea);
            ret = dhd_iovar(dhd, 0, "p2p_da_override", (char *)&p2p_ea,
                            sizeof(p2p_ea), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s p2p_da_override ret= %d\n", __FUNCTION__, ret));
            } else {
                DHD_INFO(("dhd_preinit_ioctls: p2p_da_override succeeded\n"));
            }
        }
#else
        (void)concurrent_mode;
#endif // endif
    }

#ifdef DISABLE_PRUNED_SCAN
    if (FW_SUPPORTED(dhd, rsdb)) {
        ret = dhd_iovar(dhd, 0, "scan_features", (char *)&scan_features,
                        sizeof(scan_features), iovbuf, sizeof(iovbuf), FALSE);
        if (ret < 0) {
            DHD_ERROR(
                ("%s get scan_features is failed ret=%d\n", __FUNCTION__, ret));
        } else {
            memcpy(&scan_features, iovbuf, 0x4);
            scan_features &= ~RSDB_SCAN_DOWNGRADED_CH_PRUNE_ROAM;
            ret = dhd_iovar(dhd, 0, "scan_features", (char *)&scan_features,
                            sizeof(scan_features), NULL, 0, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s set scan_features is failed ret=%d\n",
                           __FUNCTION__, ret));
            }
        }
    }
#endif /* DISABLE_PRUNED_SCAN */

    DHD_ERROR(("Firmware up: op_mode=0x%04x, MAC=" MACDBG "\n", dhd->op_mode,
               MAC2STRDBG(dhd->mac.octet)));
#if defined(DHD_BLOB_EXISTENCE_CHECK)
    if (!dhd->is_blob)
#endif /* DHD_BLOB_EXISTENCE_CHECK */
    {
        /* get a ccode and revision for the country code */
#if defined(CUSTOM_COUNTRY_CODE)
        get_customized_country_code(dhd->info->adapter,
                                    dhd->dhd_cspec.country_abbrev,
                                    &dhd->dhd_cspec, dhd->dhd_cflags);
#else
        get_customized_country_code(
            dhd->info->adapter, dhd->dhd_cspec.country_abbrev, &dhd->dhd_cspec);
#endif /* CUSTOM_COUNTRY_CODE */
    }

#if defined(RXFRAME_THREAD) && defined(RXTHREAD_ONLYSTA)
    if (dhd->op_mode == DHD_FLAG_HOSTAP_MODE) {
        dhd->info->rxthread_enabled = FALSE;
    } else {
        dhd->info->rxthread_enabled = TRUE;
    }
#endif // endif
    /* Set Country code  */
    if (dhd->dhd_cspec.ccode[0] != 0) {
        ret = dhd_iovar(dhd, 0, "country", (char *)&dhd->dhd_cspec,
                        sizeof(wl_country_t), NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(("%s: country code setting failed\n", __FUNCTION__));
        }
    }

    /* Set Listen Interval */
    ret = dhd_iovar(dhd, 0, "assoc_listen", (char *)&listen_interval,
                    sizeof(listen_interval), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s assoc_listen failed %d\n", __FUNCTION__, ret));
    }

#if defined(ROAM_ENABLE) || defined(DISABLE_BUILTIN_ROAM)
#ifdef USE_WFA_CERT_CONF
    if (sec_get_param_wfa_cert(dhd, SET_PARAM_ROAMOFF, &roamvar) == BCME_OK) {
        DHD_ERROR(("%s: read roam_off param =%d\n", __FUNCTION__, roamvar));
    }
#endif /* USE_WFA_CERT_CONF */
    /* Disable built-in roaming to allowed ext supplicant to take care of
     * roaming */
    ret = dhd_iovar(dhd, 0, "roam_off", (char *)&roamvar, sizeof(roamvar), NULL,
                    0, TRUE);
#endif /* ROAM_ENABLE || DISABLE_BUILTIN_ROAM */
#if defined(ROAM_ENABLE)
#ifdef DISABLE_BCNLOSS_ROAM
    ret = dhd_iovar(dhd, 0, "roam_bcnloss_off", (char *)&roam_bcnloss_off,
                    sizeof(roam_bcnloss_off), NULL, 0, TRUE);
#endif /* DISABLE_BCNLOSS_ROAM */
    if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_ROAM_TRIGGER, roam_trigger,
                                sizeof(roam_trigger), TRUE, 0)) < 0) {
        DHD_ERROR(("%s: roam trigger set failed %d\n", __FUNCTION__, ret));
    }
    if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_ROAM_SCAN_PERIOD, roam_scan_period,
                                sizeof(roam_scan_period), TRUE, 0)) < 0) {
        DHD_ERROR(("%s: roam scan period set failed %d\n", __FUNCTION__, ret));
    }
    if ((dhd_wl_ioctl_cmd(dhd, WLC_SET_ROAM_DELTA, roam_delta,
                          sizeof(roam_delta), TRUE, 0)) < 0) {
        DHD_ERROR(("%s: roam delta set failed %d\n", __FUNCTION__, ret));
    }
    ret = dhd_iovar(dhd, 0, "fullroamperiod", (char *)&roam_fullscan_period,
                    sizeof(roam_fullscan_period), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(
            ("%s: roam fullscan period set failed %d\n", __FUNCTION__, ret));
    }
#ifdef ROAM_AP_ENV_DETECTION
    if (roam_trigger[0] == WL_AUTO_ROAM_TRIGGER) {
        if (dhd_iovar(dhd, 0, "roam_env_detection", (char *)&roam_env_mode,
                      sizeof(roam_env_mode), NULL, 0, TRUE) == BCME_OK) {
            dhd->roam_env_detection = TRUE;
        } else {
            dhd->roam_env_detection = FALSE;
        }
    }
#endif /* ROAM_AP_ENV_DETECTION */
#endif /* ROAM_ENABLE */

#ifdef CUSTOM_EVENT_PM_WAKE
    ret = dhd_iovar(dhd, 0, "const_awake_thresh", (char *)&pm_awake_thresh,
                    sizeof(pm_awake_thresh), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s set const_awake_thresh failed %d\n", __FUNCTION__, ret));
    }
#endif /* CUSTOM_EVENT_PM_WAKE */
#ifdef OKC_SUPPORT
    ret = dhd_iovar(dhd, 0, "okc_enable", (char *)&okc, sizeof(okc), NULL, 0,
                    TRUE);
#endif // endif
#ifdef BCMCCX
    ret = dhd_iovar(dhd, 0, "ccx_enable", (char *)&ccx, sizeof(ccx), NULL, 0,
                    TRUE);
#endif /* BCMCCX */

#ifdef WLTDLS
    dhd->tdls_enable = FALSE;
    dhd_tdls_set_mode(dhd, false);
#endif /* WLTDLS */

#ifdef DHD_ENABLE_LPC
    /* Set lpc 1 */
    ret = dhd_iovar(dhd, 0, "lpc", (char *)&lpc, sizeof(lpc), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s Set lpc failed  %d\n", __FUNCTION__, ret));

        if (ret == BCME_NOTDOWN) {
            uint wl_down = 1;
            ret = dhd_wl_ioctl_cmd(dhd, WLC_DOWN, (char *)&wl_down,
                                   sizeof(wl_down), TRUE, 0);
            DHD_ERROR(("%s lpc fail WL_DOWN : %d, lpc = %d\n", __FUNCTION__,
                       ret, lpc));

            ret = dhd_iovar(dhd, 0, "lpc", (char *)&lpc, sizeof(lpc), NULL, 0,
                            TRUE);
            DHD_ERROR(("%s Set lpc ret --> %d\n", __FUNCTION__, ret));
        }
    }
#endif /* DHD_ENABLE_LPC */

#ifdef WLADPS
    if (dhd->op_mode & DHD_FLAG_STA_MODE) {
        if ((ret = dhd_enable_adps(dhd, ADPS_ENABLE)) != BCME_OK) {
            DHD_ERROR(("%s dhd_enable_adps failed %d\n", __FUNCTION__, ret));
        }
    }
#endif /* WLADPS */

#ifdef DHD_PM_CONTROL_FROM_FILE
    sec_control_pm(dhd, &power_mode);
#else
    /* Set PowerSave mode */
    (void)dhd_wl_ioctl_cmd(dhd, WLC_SET_PM, (char *)&power_mode,
                           sizeof(power_mode), TRUE, 0);
#endif /* DHD_PM_CONTROL_FROM_FILE */

#if defined(BCMSDIO)
    /* Match Host and Dongle rx alignment */
    ret = dhd_iovar(dhd, 0, "bus:txglomalign", (char *)&dongle_align,
                    sizeof(dongle_align), NULL, 0, TRUE);

#if defined(USE_WL_CREDALL)
    /* enable credall to reduce the chance of no bus credit happened. */
    ret = dhd_iovar(dhd, 0, "bus:credall", (char *)&credall, sizeof(credall),
                    NULL, 0, TRUE);
#endif // endif

#ifdef USE_WFA_CERT_CONF
    if (sec_get_param_wfa_cert(dhd, SET_PARAM_BUS_TXGLOM_MODE, &glom) ==
        BCME_OK) {
        DHD_ERROR(("%s, read txglom param =%d\n", __FUNCTION__, glom));
    }
#endif /* USE_WFA_CERT_CONF */
    if (glom != DEFAULT_GLOM_VALUE) {
        DHD_INFO(("%s set glom=0x%X\n", __FUNCTION__, glom));
        ret = dhd_iovar(dhd, 0, "bus:txglom", (char *)&glom, sizeof(glom), NULL,
                        0, TRUE);
    }
#endif /* defined(BCMSDIO) */

    /* Setup timeout if Beacons are lost and roam is off to report link down */
    ret = dhd_iovar(dhd, 0, "bcn_timeout", (char *)&bcn_timeout,
                    sizeof(bcn_timeout), NULL, 0, TRUE);

    /* Setup assoc_retry_max count to reconnect target AP in dongle */
    ret = dhd_iovar(dhd, 0, "assoc_retry_max", (char *)&retry_max,
                    sizeof(retry_max), NULL, 0, TRUE);

#if defined(AP) && !defined(WLP2P)
    ret = dhd_iovar(dhd, 0, "apsta", (char *)&apsta, sizeof(apsta), NULL, 0,
                    TRUE);

#endif /* defined(AP) && !defined(WLP2P) */

#ifdef MIMO_ANT_SETTING
    dhd_sel_ant_from_file(dhd);
#endif /* MIMO_ANT_SETTING */

#if defined(SOFTAP)
    if (ap_fw_loaded == TRUE) {
        dhd_wl_ioctl_cmd(dhd, WLC_SET_DTIMPRD, (char *)&dtim, sizeof(dtim),
                         TRUE, 0);
    }
#endif // endif

#if defined(KEEP_ALIVE)
    {
        /* Set Keep Alive : be sure to use FW with -keepalive */
        int res;

#if defined(SOFTAP)
        if (ap_fw_loaded == FALSE)
#endif // endif
            if (!(dhd->op_mode & (DHD_FLAG_HOSTAP_MODE | DHD_FLAG_MFG_MODE))) {
                if ((res = dhd_keep_alive_onoff(dhd)) < 0) {
                    DHD_ERROR(
                        ("%s set keeplive failed %d\n", __FUNCTION__, res));
                }
            }
    }
#endif /* defined(KEEP_ALIVE) */

#ifdef USE_WL_TXBF
    ret = dhd_iovar(dhd, 0, "txbf", (char *)&txbf, sizeof(txbf), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s Set txbf failed  %d\n", __FUNCTION__, ret));
    }

#endif /* USE_WL_TXBF */

    ret = dhd_iovar(dhd, 0, "scancache", (char *)&scancache_enab,
                    sizeof(scancache_enab), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s Set scancache failed %d\n", __FUNCTION__, ret));
    }

    ret = dhd_iovar(dhd, 0, "event_log_max_sets", NULL, 0,
                    (char *)&event_log_max_sets, sizeof(event_log_max_sets),
                    FALSE);
    if (ret == BCME_OK) {
        dhd->event_log_max_sets = event_log_max_sets;
    } else {
        dhd->event_log_max_sets = NUM_EVENT_LOG_SETS;
    }
    /* Make sure max_sets is set first with wmb and then sets_queried,
     * this will be used during parsing the logsets in the reverse order.
     */
    OSL_SMP_WMB();
    dhd->event_log_max_sets_queried = TRUE;
    DHD_ERROR(("%s: event_log_max_sets: %d ret: %d\n", __FUNCTION__,
               dhd->event_log_max_sets, ret));

#ifdef DISABLE_TXBFR
    ret = dhd_iovar(dhd, 0, "txbf_bfr_cap", (char *)&txbf_bfr_cap,
                    sizeof(txbf_bfr_cap), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s Clear txbf_bfr_cap failed  %d\n", __FUNCTION__, ret));
    }
#endif /* DISABLE_TXBFR */

#ifdef USE_WFA_CERT_CONF
#ifdef USE_WL_FRAMEBURST
    if (sec_get_param_wfa_cert(dhd, SET_PARAM_FRAMEBURST, &frameburst) ==
        BCME_OK) {
        DHD_ERROR(("%s, read frameburst param=%d\n", __FUNCTION__, frameburst));
    }
#endif /* USE_WL_FRAMEBURST */
    g_frameburst = frameburst;
#endif /* USE_WFA_CERT_CONF */
#ifdef DISABLE_WL_FRAMEBURST_SOFTAP
    /* Disable Framebursting for SofAP */
    if (dhd->op_mode & DHD_FLAG_HOSTAP_MODE) {
        frameburst = 0;
    }
#endif /* DISABLE_WL_FRAMEBURST_SOFTAP */
    /* Set frameburst to value */
    if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_FAKEFRAG, (char *)&frameburst,
                                sizeof(frameburst), TRUE, 0)) < 0) {
        DHD_INFO(("%s frameburst not supported  %d\n", __FUNCTION__, ret));
    }
#ifdef DHD_SET_FW_HIGHSPEED
    /* Set ack_ratio */
    ret = dhd_iovar(dhd, 0, "ack_ratio", (char *)&ack_ratio, sizeof(ack_ratio),
                    NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s Set ack_ratio failed  %d\n", __FUNCTION__, ret));
    }

    /* Set ack_ratio_depth */
    ret = dhd_iovar(dhd, 0, "ack_ratio_depth", (char *)&ack_ratio_depth,
                    sizeof(ack_ratio_depth), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s Set ack_ratio_depth failed  %d\n", __FUNCTION__, ret));
    }
#endif /* DHD_SET_FW_HIGHSPEED */

    iov_buf = (char *)MALLOC(dhd->osh, WLC_IOCTL_SMLEN);
    if (iov_buf == NULL) {
        DHD_ERROR(
            ("failed to allocate %d bytes for iov_buf\n", WLC_IOCTL_SMLEN));
        ret = BCME_NOMEM;
        goto done;
    }

#if defined(CUSTOM_AMPDU_BA_WSIZE)
    /* Set ampdu ba wsize to 64 or 16 */
#ifdef CUSTOM_AMPDU_BA_WSIZE
    ampdu_ba_wsize = CUSTOM_AMPDU_BA_WSIZE;
#endif // endif
    if (ampdu_ba_wsize != 0) {
        ret = dhd_iovar(dhd, 0, "ampdu_ba_wsize", (char *)&ampdu_ba_wsize,
                        sizeof(ampdu_ba_wsize), NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(("%s Set ampdu_ba_wsize to %d failed  %d\n", __FUNCTION__,
                       ampdu_ba_wsize, ret));
        }
    }
#endif // endif

#if defined(CUSTOM_AMPDU_MPDU)
    ampdu_mpdu = CUSTOM_AMPDU_MPDU;
    if (ampdu_mpdu != 0 && (ampdu_mpdu <= ampdu_ba_wsize)) {
        ret = dhd_iovar(dhd, 0, "ampdu_mpdu", (char *)&ampdu_mpdu,
                        sizeof(ampdu_mpdu), NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(("%s Set ampdu_mpdu to %d failed  %d\n", __FUNCTION__,
                       CUSTOM_AMPDU_MPDU, ret));
        }
    }
#endif /* CUSTOM_AMPDU_MPDU */

#if defined(CUSTOM_AMPDU_RELEASE)
    ampdu_release = CUSTOM_AMPDU_RELEASE;
    if (ampdu_release != 0 && (ampdu_release <= ampdu_ba_wsize)) {
        ret = dhd_iovar(dhd, 0, "ampdu_release", (char *)&ampdu_release,
                        sizeof(ampdu_release), NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(("%s Set ampdu_release to %d failed  %d\n", __FUNCTION__,
                       CUSTOM_AMPDU_RELEASE, ret));
        }
    }
#endif /* CUSTOM_AMPDU_RELEASE */

#if defined(CUSTOM_AMSDU_AGGSF)
    amsdu_aggsf = CUSTOM_AMSDU_AGGSF;
    if (amsdu_aggsf != 0) {
        ret = dhd_iovar(dhd, 0, "amsdu_aggsf", (char *)&amsdu_aggsf,
                        sizeof(amsdu_aggsf), NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(("%s Set amsdu_aggsf to %d failed  %d\n", __FUNCTION__,
                       CUSTOM_AMSDU_AGGSF, ret));
        }
    }
#endif /* CUSTOM_AMSDU_AGGSF */

#if defined(BCMSUP_4WAY_HANDSHAKE)
    /* Read 4-way handshake requirements */
    if (dhd_use_idsup == 1) {
        ret = dhd_iovar(dhd, 0, "sup_wpa", (char *)&sup_wpa, sizeof(sup_wpa),
                        (char *)&iovbuf, sizeof(iovbuf), FALSE);
        /* sup_wpa iovar returns NOTREADY status on some platforms using
         * modularized in-dongle supplicant.
         */
        if (ret >= 0 || ret == BCME_NOTREADY) {
            dhd->fw_4way_handshake = TRUE;
        }
        DHD_TRACE(("4-way handshake mode is: %d\n", dhd->fw_4way_handshake));
    }
#endif /* BCMSUP_4WAY_HANDSHAKE */
#if defined(SUPPORT_2G_VHT) || defined(SUPPORT_5G_1024QAM_VHT)
    ret = dhd_iovar(dhd, 0, "vht_features", (char *)&vht_features,
                    sizeof(vht_features), NULL, 0, FALSE);
    if (ret < 0) {
        DHD_ERROR(("%s vht_features get failed %d\n", __FUNCTION__, ret));
        vht_features = 0;
    } else {
#ifdef SUPPORT_2G_VHT
        vht_features |= 0x3; /* 2G support */
#endif                       /* SUPPORT_2G_VHT */
#ifdef SUPPORT_5G_1024QAM_VHT
        vht_features |= 0x6; /* 5G 1024 QAM support */
#endif                       /* SUPPORT_5G_1024QAM_VHT */
    }
    if (vht_features) {
        ret = dhd_iovar(dhd, 0, "vht_features", (char *)&vht_features,
                        sizeof(vht_features), NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(("%s vht_features set failed %d\n", __FUNCTION__, ret));

            if (ret == BCME_NOTDOWN) {
                uint wl_down = 1;
                ret = dhd_wl_ioctl_cmd(dhd, WLC_DOWN, (char *)&wl_down,
                                       sizeof(wl_down), TRUE, 0);
                DHD_ERROR(("%s vht_features fail WL_DOWN : %d,"
                           " vht_features = 0x%x\n",
                           __FUNCTION__, ret, vht_features));

                ret = dhd_iovar(dhd, 0, "vht_features", (char *)&vht_features,
                                sizeof(vht_features), NULL, 0, TRUE);

                DHD_ERROR(
                    ("%s vht_features set. ret --> %d\n", __FUNCTION__, ret));
            }
        }
    }
#endif /* SUPPORT_2G_VHT || SUPPORT_5G_1024QAM_VHT */
#ifdef DISABLE_11N_PROPRIETARY_RATES
    ret = dhd_iovar(dhd, 0, "ht_features", (char *)&ht_features,
                    sizeof(ht_features), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s ht_features set failed %d\n", __FUNCTION__, ret));
    }
#endif /* DISABLE_11N_PROPRIETARY_RATES */
#if defined(DISABLE_HE_ENAB) || defined(CUSTOM_CONTROL_HE_ENAB)
#if defined(DISABLE_HE_ENAB)
    control_he_enab = 0;
#endif /* DISABLE_HE_ENAB */
    dhd_control_he_enab(dhd, control_he_enab);
#endif /* DISABLE_HE_ENAB || CUSTOM_CONTROL_HE_ENAB */

#ifdef CUSTOM_PSPRETEND_THR
    /* Turn off MPC in AP mode */
    ret = dhd_iovar(dhd, 0, "pspretend_threshold", (char *)&pspretend_thr,
                    sizeof(pspretend_thr), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s pspretend_threshold for HostAPD failed  %d\n",
                   __FUNCTION__, ret));
    }
#endif // endif

    ret = dhd_iovar(dhd, 0, "buf_key_b4_m4", (char *)&buf_key_b4_m4,
                    sizeof(buf_key_b4_m4), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s buf_key_b4_m4 set failed %d\n", __FUNCTION__, ret));
    }
#ifdef SUPPORT_SET_CAC
    ret = dhd_iovar(dhd, 0, "cac", (char *)&cac, sizeof(cac), NULL, 0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s Failed to set cac to %d, %d\n", __FUNCTION__, cac, ret));
    }
#endif /* SUPPORT_SET_CAC */
#ifdef DHD_ULP
    /* Get the required details from dongle during preinit ioctl */
    dhd_ulp_preinit(dhd);
#endif /* DHD_ULP */

    /* Read event_msgs mask */
    ret = dhd_iovar(dhd, 0, "event_msgs", eventmask, WL_EVENTING_MASK_LEN,
                    iovbuf, sizeof(iovbuf), FALSE);
    if (ret < 0) {
        DHD_ERROR(("%s read Event mask failed %d\n", __FUNCTION__, ret));
        goto done;
    }
    bcopy(iovbuf, eventmask, WL_EVENTING_MASK_LEN);

    /* Setup event_msgs */
    setbit(eventmask, WLC_E_SET_SSID);
    setbit(eventmask, WLC_E_PRUNE);
    setbit(eventmask, WLC_E_AUTH);
    setbit(eventmask, WLC_E_AUTH_IND);
    setbit(eventmask, WLC_E_ASSOC);
    setbit(eventmask, WLC_E_REASSOC);
    setbit(eventmask, WLC_E_REASSOC_IND);
    if (!(dhd->op_mode & DHD_FLAG_IBSS_MODE)) {
        setbit(eventmask, WLC_E_DEAUTH);
    }
    setbit(eventmask, WLC_E_DEAUTH_IND);
    setbit(eventmask, WLC_E_DISASSOC_IND);
    setbit(eventmask, WLC_E_DISASSOC);
    setbit(eventmask, WLC_E_JOIN);
    setbit(eventmask, WLC_E_START);
    setbit(eventmask, WLC_E_ASSOC_IND);
    setbit(eventmask, WLC_E_PSK_SUP);
    setbit(eventmask, WLC_E_LINK);
    setbit(eventmask, WLC_E_MIC_ERROR);
    setbit(eventmask, WLC_E_ASSOC_REQ_IE);
    setbit(eventmask, WLC_E_ASSOC_RESP_IE);
#ifdef LIMIT_BORROW
    setbit(eventmask, WLC_E_ALLOW_CREDIT_BORROW);
#endif // endif
#ifndef WL_CFG80211
    setbit(eventmask, WLC_E_PMKID_CACHE);
//	setbit(eventmask, WLC_E_TXFAIL); // terence 20181106: remove unnecessary
// event
#endif // endif
    setbit(eventmask, WLC_E_JOIN_START);
//	setbit(eventmask, WLC_E_SCAN_COMPLETE); // terence 20150628: remove
// redundant event
#ifdef DHD_DEBUG
    setbit(eventmask, WLC_E_SCAN_CONFIRM_IND);
#endif // endif
#ifdef PNO_SUPPORT
    setbit(eventmask, WLC_E_PFN_NET_FOUND);
    setbit(eventmask, WLC_E_PFN_BEST_BATCHING);
    setbit(eventmask, WLC_E_PFN_BSSID_NET_FOUND);
    setbit(eventmask, WLC_E_PFN_BSSID_NET_LOST);
#endif /* PNO_SUPPORT */
       /* enable dongle roaming event */
#ifdef WL_CFG80211
#if !defined(ROAM_EVT_DISABLE)
    setbit(eventmask, WLC_E_ROAM);
#endif /* !ROAM_EVT_DISABLE */
    setbit(eventmask, WLC_E_BSSID);
#endif /* WL_CFG80211 */
#ifdef BCMCCX
    setbit(eventmask, WLC_E_ADDTS_IND);
    setbit(eventmask, WLC_E_DELTS_IND);
#endif /* BCMCCX */
#ifdef WLTDLS
    setbit(eventmask, WLC_E_TDLS_PEER_EVENT);
#endif /* WLTDLS */
#ifdef WL_ESCAN
    setbit(eventmask, WLC_E_ESCAN_RESULT);
#endif /* WL_ESCAN */
#ifdef CSI_SUPPORT
    setbit(eventmask, WLC_E_CSI);
#endif /* CSI_SUPPORT */
#ifdef RTT_SUPPORT
    setbit(eventmask, WLC_E_PROXD);
#endif /* RTT_SUPPORT */
#ifdef WL_CFG80211
    setbit(eventmask, WLC_E_ESCAN_RESULT);
    setbit(eventmask, WLC_E_AP_STARTED);
    setbit(eventmask, WLC_E_ACTION_FRAME_RX);
    if (dhd->op_mode & DHD_FLAG_P2P_MODE) {
        setbit(eventmask, WLC_E_P2P_DISC_LISTEN_COMPLETE);
    }
#endif /* WL_CFG80211 */

#if defined(SHOW_LOGTRACE) && defined(LOGTRACE_FROM_FILE)
    if (dhd_logtrace_from_file(dhd)) {
        setbit(eventmask, WLC_E_TRACE);
    } else {
        clrbit(eventmask, WLC_E_TRACE);
    }
#elif defined(SHOW_LOGTRACE)
    setbit(eventmask, WLC_E_TRACE);
#else
    clrbit(eventmask, WLC_E_TRACE);
#endif /* defined(SHOW_LOGTRACE) && defined(LOGTRACE_FROM_FILE) */

    setbit(eventmask, WLC_E_CSA_COMPLETE_IND);
#ifdef CUSTOM_EVENT_PM_WAKE
    setbit(eventmask, WLC_E_EXCESS_PM_WAKE_EVENT);
#endif /* CUSTOM_EVENT_PM_WAKE */
#ifdef DHD_LOSSLESS_ROAMING
    setbit(eventmask, WLC_E_ROAM_PREP);
#endif // endif
    /* nan events */
    setbit(eventmask, WLC_E_NAN);
#if defined(PCIE_FULL_DONGLE) && defined(DHD_LOSSLESS_ROAMING)
    dhd_update_flow_prio_map(dhd, DHD_FLOW_PRIO_LLR_MAP);
#endif /* defined(PCIE_FULL_DONGLE) && defined(DHD_LOSSLESS_ROAMING) */

#if defined(BCMPCIE) && defined(EAPOL_PKT_PRIO)
    dhd_update_flow_prio_map(dhd, DHD_FLOW_PRIO_LLR_MAP);
#endif /* defined(BCMPCIE) && defined(EAPOL_PKT_PRIO) */

    /* Write updated Event mask */
    ret = dhd_iovar(dhd, 0, "event_msgs", eventmask, WL_EVENTING_MASK_LEN, NULL,
                    0, TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s Set Event mask failed %d\n", __FUNCTION__, ret));
        goto done;
    }

    /* make up event mask ext message iovar for event larger than 128 */
    msglen = ROUNDUP(WLC_E_LAST, NBBY) / NBBY + EVENTMSGS_EXT_STRUCT_SIZE;
    eventmask_msg = (eventmsgs_ext_t *)MALLOC(dhd->osh, msglen);
    if (eventmask_msg == NULL) {
        DHD_ERROR(("failed to allocate %d bytes for event_msg_ext\n", msglen));
        ret = BCME_NOMEM;
        goto done;
    }
    bzero(eventmask_msg, msglen);
    eventmask_msg->ver = EVENTMSGS_VER;
    eventmask_msg->len = ROUNDUP(WLC_E_LAST, NBBY) / NBBY;

    /* Read event_msgs_ext mask */
    ret2 = dhd_iovar(dhd, 0, "event_msgs_ext", (char *)eventmask_msg, msglen,
                     iov_buf, WLC_IOCTL_SMLEN, FALSE);
    if (ret2 == 0) { /* event_msgs_ext must be supported */
        bcopy(iov_buf, eventmask_msg, msglen);
#ifdef RSSI_MONITOR_SUPPORT
        setbit(eventmask_msg->mask, WLC_E_RSSI_LQM);
#endif /* RSSI_MONITOR_SUPPORT */
#ifdef GSCAN_SUPPORT
        setbit(eventmask_msg->mask, WLC_E_PFN_GSCAN_FULL_RESULT);
        setbit(eventmask_msg->mask, WLC_E_PFN_SCAN_COMPLETE);
        setbit(eventmask_msg->mask, WLC_E_PFN_SSID_EXT);
        setbit(eventmask_msg->mask, WLC_E_ROAM_EXP_EVENT);
#endif /* GSCAN_SUPPORT */
        setbit(eventmask_msg->mask, WLC_E_RSSI_LQM);
#ifdef BT_WIFI_HANDOVER
        setbit(eventmask_msg->mask, WLC_E_BT_WIFI_HANDOVER_REQ);
#endif /* BT_WIFI_HANDOVER */
#ifdef DBG_PKT_MON
        setbit(eventmask_msg->mask, WLC_E_ROAM_PREP);
#endif /* DBG_PKT_MON */
#ifdef DHD_ULP
        setbit(eventmask_msg->mask, WLC_E_ULP);
#endif // endif
#ifdef WL_NATOE
        setbit(eventmask_msg->mask, WLC_E_NATOE_NFCT);
#endif /* WL_NATOE */
#ifdef WL_NAN
        setbit(eventmask_msg->mask, WLC_E_SLOTTED_BSS_PEER_OP);
#endif /* WL_NAN */
#ifdef WL_MBO
        setbit(eventmask_msg->mask, WLC_E_MBO);
#endif /* WL_MBO */
#ifdef WL_CLIENT_SAE
        setbit(eventmask_msg->mask, WLC_E_JOIN_START);
#endif /* WL_CLIENT_SAE */
#ifdef WL_BCNRECV
        setbit(eventmask_msg->mask, WLC_E_BCNRECV_ABORTED);
#endif /* WL_BCNRECV */
#ifdef WL_CAC_TS
        setbit(eventmask_msg->mask, WLC_E_ADDTS_IND);
        setbit(eventmask_msg->mask, WLC_E_DELTS_IND);
#endif /* WL_CAC_TS */
#ifdef WL_CHAN_UTIL
        setbit(eventmask_msg->mask, WLC_E_BSS_LOAD);
#endif /* WL_CHAN_UTIL */

        /* Write updated Event mask */
        eventmask_msg->ver = EVENTMSGS_VER;
        eventmask_msg->command = EVENTMSGS_SET_MASK;
        eventmask_msg->len = ROUNDUP(WLC_E_LAST, NBBY) / NBBY;
        ret = dhd_iovar(dhd, 0, "event_msgs_ext", (char *)eventmask_msg, msglen,
                        NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(
                ("%s write event mask ext failed %d\n", __FUNCTION__, ret));
            goto done;
        }
    } else if (ret2 == BCME_UNSUPPORTED || ret2 == BCME_VERSION) {
        /* Skip for BCME_UNSUPPORTED or BCME_VERSION */
        DHD_ERROR(("%s event_msgs_ext not support or version mismatch %d\n",
                   __FUNCTION__, ret2));
    } else {
        DHD_ERROR(("%s read event mask ext failed %d\n", __FUNCTION__, ret2));
        ret = ret2;
        goto done;
    }

#if defined(DHD_8021X_DUMP) && defined(SHOW_LOGTRACE)
    /* Enabling event log trace for EAP events */
    el_tag = (wl_el_tag_params_t *)MALLOC(dhd->osh, sizeof(wl_el_tag_params_t));
    if (el_tag == NULL) {
        DHD_ERROR(("failed to allocate %d bytes for event_msg_ext\n",
                   (int)sizeof(wl_el_tag_params_t)));
        ret = BCME_NOMEM;
        goto done;
    }
    el_tag->tag = EVENT_LOG_TAG_4WAYHANDSHAKE;
    el_tag->set = 1;
    el_tag->flags = EVENT_LOG_TAG_FLAG_LOG;
    ret = dhd_iovar(dhd, 0, "event_log_tag_control", (char *)el_tag,
                    sizeof(*el_tag), NULL, 0, TRUE);
#endif /* DHD_8021X_DUMP */

    dhd_wl_ioctl_cmd(dhd, WLC_SET_SCAN_CHANNEL_TIME, (char *)&scan_assoc_time,
                     sizeof(scan_assoc_time), TRUE, 0);
    dhd_wl_ioctl_cmd(dhd, WLC_SET_SCAN_UNASSOC_TIME, (char *)&scan_unassoc_time,
                     sizeof(scan_unassoc_time), TRUE, 0);
    dhd_wl_ioctl_cmd(dhd, WLC_SET_SCAN_PASSIVE_TIME, (char *)&scan_passive_time,
                     sizeof(scan_passive_time), TRUE, 0);

#ifdef ARP_OFFLOAD_SUPPORT
    /* Set and enable ARP offload feature for STA only  */
#if defined(SOFTAP)
    if (arpoe && !ap_fw_loaded)
#else
        if (arpoe)
#endif // endif
    {
        dhd_arp_offload_enable(dhd, TRUE);
        dhd_arp_offload_set(dhd, dhd_arp_mode);
    } else {
        dhd_arp_offload_enable(dhd, FALSE);
        dhd_arp_offload_set(dhd, 0);
    }
    dhd_arp_enable = arpoe;
#endif /* ARP_OFFLOAD_SUPPORT */

#ifdef PKT_FILTER_SUPPORT
    /* Setup default defintions for pktfilter , enable in suspend */
    if (dhd_master_mode) {
        dhd->pktfilter_count = 0x6;
        dhd->pktfilter[DHD_BROADCAST_FILTER_NUM] = NULL;
        if (!FW_SUPPORTED(dhd, pf6)) {
            dhd->pktfilter[DHD_MULTICAST4_FILTER_NUM] = NULL;
            dhd->pktfilter[DHD_MULTICAST6_FILTER_NUM] = NULL;
        } else {
            /* Immediately pkt filter TYPE 6 Discard IPv4/IPv6 Multicast Packet
             */
            dhd->pktfilter[DHD_MULTICAST4_FILTER_NUM] = DISCARD_IPV4_MCAST;
            dhd->pktfilter[DHD_MULTICAST6_FILTER_NUM] = DISCARD_IPV6_MCAST;
        }
        /* apply APP pktfilter */
        dhd->pktfilter[DHD_ARP_FILTER_NUM] = "105 0 0 12 0xFFFF 0x0806";

#ifdef BLOCK_IPV6_PACKET
        /* Setup filter to allow only IPv4 unicast frames */
        dhd->pktfilter[DHD_UNICAST_FILTER_NUM] =
            "100 0 0 0 " HEX_PREF_STR UNI_FILTER_STR ZERO_ADDR_STR
                ETHER_TYPE_STR IPV6_FILTER_STR " " HEX_PREF_STR ZERO_ADDR_STR
                    ZERO_ADDR_STR ETHER_TYPE_STR ZERO_TYPE_STR;
#else
            /* Setup filter to allow only unicast */
            dhd->pktfilter[DHD_UNICAST_FILTER_NUM] = "100 0 0 0 0x01 0x00";
#endif /* BLOCK_IPV6_PACKET */

#ifdef PASS_IPV4_SUSPEND
        dhd->pktfilter[DHD_MDNS_FILTER_NUM] = "104 0 0 0 0xFFFFFF 0x01005E";
#else
            /* Add filter to pass multicastDNS packet and NOT filter out as
             * Broadcast */
            dhd->pktfilter[DHD_MDNS_FILTER_NUM] = NULL;
#endif /* PASS_IPV4_SUSPEND */
        if (FW_SUPPORTED(dhd, pf6)) {
            /* Immediately pkt filter TYPE 6 Dicard Broadcast IP packet */
            dhd->pktfilter[DHD_IP4BCAST_DROP_FILTER_NUM] = DISCARD_IPV4_BCAST;
            /* Immediately pkt filter TYPE 6 Dicard Cisco STP packet */
            dhd->pktfilter[DHD_LLC_STP_DROP_FILTER_NUM] = DISCARD_LLC_STP;
            /* Immediately pkt filter TYPE 6 Dicard Cisco XID protocol */
            dhd->pktfilter[DHD_LLC_XID_DROP_FILTER_NUM] = DISCARD_LLC_XID;
            dhd->pktfilter_count = 0xA;
        }

#ifdef GAN_LITE_NAT_KEEPALIVE_FILTER
        dhd->pktfilter_count = 0x4;
        /* Setup filter to block broadcast and NAT Keepalive packets */
        /* discard all broadcast packets */
        dhd->pktfilter[DHD_UNICAST_FILTER_NUM] = "100 0 0 0 0xffffff 0xffffff";
        /* discard NAT Keepalive packets */
        dhd->pktfilter[DHD_BROADCAST_FILTER_NUM] =
            "102 0 0 36 0xffffffff 0x11940009";
        /* discard NAT Keepalive packets */
        dhd->pktfilter[DHD_MULTICAST4_FILTER_NUM] =
            "104 0 0 38 0xffffffff 0x11940009";
        dhd->pktfilter[DHD_MULTICAST6_FILTER_NUM] = NULL;
#endif /* GAN_LITE_NAT_KEEPALIVE_FILTER */
    } else {
        dhd_conf_discard_pkt_filter(dhd);
    }
    dhd_conf_add_pkt_filter(dhd);

#if defined(SOFTAP)
    if (ap_fw_loaded) {
        dhd_enable_packet_filter(0, dhd);
    }
#endif /* defined(SOFTAP) */
    dhd_set_packet_filter(dhd);
#endif /* PKT_FILTER_SUPPORT */
#ifdef DISABLE_11N
    ret = dhd_iovar(dhd, 0, "nmode", (char *)&nmode, sizeof(nmode), NULL, 0,
                    TRUE);
    if (ret < 0) {
        DHD_ERROR(("%s wl nmode 0 failed %d\n", __FUNCTION__, ret));
    }
#endif /* DISABLE_11N */

#ifdef ENABLE_BCN_LI_BCN_WAKEUP
    ret = dhd_iovar(dhd, 0, "bcn_li_bcn", (char *)&bcn_li_bcn,
                    sizeof(bcn_li_bcn), NULL, 0, TRUE);
#endif /* ENABLE_BCN_LI_BCN_WAKEUP */
#ifdef AMPDU_VO_ENABLE
    tid.tid = PRIO_8021D_VO; /* Enable TID(6) for voice */
    tid.enable = TRUE;
    ret = dhd_iovar(dhd, 0, "ampdu_tid", (char *)&tid, sizeof(tid), NULL, 0,
                    TRUE);

    tid.tid = PRIO_8021D_NC; /* Enable TID(7) for voice */
    tid.enable = TRUE;
    ret = dhd_iovar(dhd, 0, "ampdu_tid", (char *)&tid, sizeof(tid), NULL, 0,
                    TRUE);
#endif // endif
    /* query for 'clmver' to get clm version info from firmware */
    memset(buf, 0, sizeof(buf));
    ret = dhd_iovar(dhd, 0, "clmver", NULL, 0, buf, sizeof(buf), FALSE);
    if (ret < 0) {
        DHD_ERROR(("%s clmver failed %d\n", __FUNCTION__, ret));
    } else {
        char *ver_temp_buf = NULL, *ver_date_buf = NULL;
        int len;

        if ((ver_temp_buf = bcmstrstr(buf, "Data:")) == NULL) {
            DHD_ERROR(("Couldn't find \"Data:\"\n"));
        } else {
            ver_date_buf = bcmstrstr(buf, "Creation:");
            ptr = (ver_temp_buf + strlen("Data:"));
            if ((ver_temp_buf = bcmstrtok(&ptr, "\n", 0)) == NULL) {
                DHD_ERROR(("Couldn't find New line character\n"));
            } else {
                memset(clm_version, 0, CLM_VER_STR_LEN);
                len = snprintf(clm_version, CLM_VER_STR_LEN - 1, "%s",
                               ver_temp_buf);
                if (ver_date_buf) {
                    ptr = (ver_date_buf + strlen("Creation:"));
                    ver_date_buf = bcmstrtok(&ptr, "\n", 0);
                    if (ver_date_buf) {
                        snprintf(clm_version + len, CLM_VER_STR_LEN - 1 - len,
                                 " (%s)", ver_date_buf);
                    }
                }
                DHD_INFO(("CLM version = %s\n", clm_version));
            }
        }

        if (strlen(clm_version)) {
            DHD_INFO(("CLM version = %s\n", clm_version));
        } else {
            DHD_ERROR(("Couldn't find CLM version!\n"));
        }
    }
    dhd_set_version_info(dhd, fw_version);

#ifdef WRITE_WLANINFO
    sec_save_wlinfo(fw_version, EPI_VERSION_STR, dhd->info->nv_path,
                    clm_version);
#endif /* WRITE_WLANINFO */

    /* query for 'wlc_ver' to get version info from firmware */
    memset(&wlc_ver, 0, sizeof(wl_wlc_version_t));
    ret2 = dhd_iovar(dhd, 0, "wlc_ver", NULL, 0, (char *)&wlc_ver,
                     sizeof(wl_wlc_version_t), FALSE);
    if (ret2 < 0) {
        DHD_ERROR(("%s wlc_ver failed %d\n", __FUNCTION__, ret2));
        if (ret2 != BCME_UNSUPPORTED) {
            ret = ret2;
        }
    } else {
        dhd->wlc_ver_major = wlc_ver.wlc_ver_major;
        dhd->wlc_ver_minor = wlc_ver.wlc_ver_minor;
    }
#ifdef GEN_SOFTAP_INFO_FILE
    sec_save_softap_info();
#endif /* GEN_SOFTAP_INFO_FILE */

#if defined(BCMSDIO)
    dhd_txglom_enable(dhd, dhd->conf->bus_rxglom);
#endif /* defined(BCMSDIO) */

#if defined(BCMSDIO) || defined(BCMDBUS)
#ifdef PROP_TXSTATUS
    if (disable_proptx ||
#ifdef PROP_TXSTATUS_VSDB
        /* enable WLFC only if the firmware is VSDB when it is in STA mode */
        (dhd->op_mode != DHD_FLAG_HOSTAP_MODE &&
         dhd->op_mode != DHD_FLAG_IBSS_MODE) ||
#endif /* PROP_TXSTATUS_VSDB */
        FALSE) {
        wlfc_enable = FALSE;
    }
    ret = dhd_conf_get_disable_proptx(dhd);
    if (ret == 0) {
        disable_proptx = 0;
        wlfc_enable = TRUE;
    } else if (ret >= 1) {
        disable_proptx = 1;
        wlfc_enable = FALSE;
        /* terence 20161229: we should set ampdu_hostreorder=0 when
         * disable_proptx=1 */
        hostreorder = 0;
    }

#if defined(PROP_TXSTATUS)
#ifdef USE_WFA_CERT_CONF
    if (sec_get_param_wfa_cert(dhd, SET_PARAM_PROPTX, &proptx) == BCME_OK) {
        DHD_ERROR(("%s , read proptx param=%d\n", __FUNCTION__, proptx));
        wlfc_enable = proptx;
    }
#endif /* USE_WFA_CERT_CONF */
#endif /* PROP_TXSTATUS */

#ifndef DISABLE_11N
    ret = dhd_wl_ioctl_cmd(dhd, WLC_DOWN, (char *)&wl_down, sizeof(wl_down),
                           TRUE, 0);
    ret2 = dhd_iovar(dhd, 0, "ampdu_hostreorder", (char *)&hostreorder,
                     sizeof(hostreorder), NULL, 0, TRUE);
    if (ret2 < 0) {
        DHD_ERROR(("%s wl ampdu_hostreorder failed %d\n", __FUNCTION__, ret2));
        if (ret2 != BCME_UNSUPPORTED) {
            ret = ret2;
        }

        if (ret == BCME_NOTDOWN) {
            uint wl_down = 1;
            ret2 = dhd_wl_ioctl_cmd(dhd, WLC_DOWN, (char *)&wl_down,
                                    sizeof(wl_down), TRUE, 0);
            DHD_ERROR(
                ("%s ampdu_hostreorder fail WL_DOWN : %d, hostreorder :%d\n",
                 __FUNCTION__, ret2, hostreorder));

            ret2 = dhd_iovar(dhd, 0, "ampdu_hostreorder", (char *)&hostreorder,
                             sizeof(hostreorder), NULL, 0, TRUE);
            DHD_ERROR(
                ("%s wl ampdu_hostreorder. ret --> %d\n", __FUNCTION__, ret2));
            if (ret2 != BCME_UNSUPPORTED) {
                ret = ret2;
            }
        }
        if (ret2 != BCME_OK) {
            hostreorder = 0;
        }
    }
#endif /* DISABLE_11N */

    if (wlfc_enable) {
        dhd_wlfc_init(dhd);
        /* terence 20161229: enable ampdu_hostreorder if tlv enabled */
        dhd_conf_set_intiovar(dhd, 0, WLC_SET_VAR, "ampdu_hostreorder", 1, 0,
                              TRUE);
    }
#ifndef DISABLE_11N
    else if (hostreorder)
        dhd_wlfc_hostreorder_init(dhd);
#endif /* DISABLE_11N */
#else
        /* terence 20161229: disable ampdu_hostreorder if PROP_TXSTATUS not
         * defined */
        printf("%s: not define PROP_TXSTATUS\n", __FUNCTION__);
        dhd_conf_set_intiovar(dhd, 0, WLC_SET_VAR, "ampdu_hostreorder", 0, 0,
                              TRUE);
#endif /* PROP_TXSTATUS */
#endif /* BCMSDIO || BCMDBUS */
#ifndef PCIE_FULL_DONGLE
    /* For FD we need all the packets at DHD to handle intra-BSS forwarding */
    if (FW_SUPPORTED(dhd, ap)) {
        wl_ap_isolate = AP_ISOLATE_SENDUP_ALL;
        ret = dhd_iovar(dhd, 0, "ap_isolate", (char *)&wl_ap_isolate,
                        sizeof(wl_ap_isolate), NULL, 0, TRUE);
        if (ret < 0) {
            DHD_ERROR(("%s failed %d\n", __FUNCTION__, ret));
        }
    }
#endif /* PCIE_FULL_DONGLE */
#ifdef PNO_SUPPORT
    if (!dhd->pno_state) {
        dhd_pno_init(dhd);
    }
#endif // endif
#ifdef RTT_SUPPORT
    if (!dhd->rtt_state) {
        ret = dhd_rtt_init(dhd);
        if (ret < 0) {
            DHD_ERROR(("%s failed to initialize RTT\n", __FUNCTION__));
        }
    }
#endif // endif
#ifdef FILTER_IE
    /* Failure to configure filter IE is not a fatal error, ignore it. */
    if (!(dhd->op_mode & (DHD_FLAG_HOSTAP_MODE | DHD_FLAG_MFG_MODE))) {
        dhd_read_from_file(dhd);
    }
#endif /* FILTER_IE */
#ifdef WL11U
    dhd_interworking_enable(dhd);
#endif /* WL11U */

#ifdef NDO_CONFIG_SUPPORT
    dhd->ndo_enable = FALSE;
    dhd->ndo_host_ip_overflow = FALSE;
    dhd->ndo_max_host_ip = NDO_MAX_HOST_IP_ENTRIES;
#endif /* NDO_CONFIG_SUPPORT */

    /* ND offload version supported */
    dhd->ndo_version = dhd_ndo_get_version(dhd);
    if (dhd->ndo_version > 0) {
        DHD_INFO(("%s: ndo version %d\n", __FUNCTION__, dhd->ndo_version));

#ifdef NDO_CONFIG_SUPPORT
        /* enable Unsolicited NA filter */
        ret = dhd_ndo_unsolicited_na_filter_enable(dhd, 1);
        if (ret < 0) {
            DHD_ERROR(
                ("%s failed to enable Unsolicited NA filter\n", __FUNCTION__));
        }
#endif /* NDO_CONFIG_SUPPORT */
    }

    /* check dongle supports wbtext (product policy) or not */
    dhd->wbtext_support = FALSE;
    if (dhd_wl_ioctl_get_intiovar(dhd, "wnm_bsstrans_resp", &wnm_bsstrans_resp,
                                  WLC_GET_VAR, FALSE, 0) != BCME_OK) {
        DHD_ERROR(("failed to get wnm_bsstrans_resp\n"));
    }
    dhd->wbtext_policy = wnm_bsstrans_resp;
    if (dhd->wbtext_policy == WL_BSSTRANS_POLICY_PRODUCT_WBTEXT) {
        dhd->wbtext_support = TRUE;
    }
    /* driver can turn off wbtext feature through makefile */
    if (dhd->wbtext_support) {
        if (dhd_wl_ioctl_set_intiovar(dhd, "wnm_bsstrans_resp",
                                      WL_BSSTRANS_POLICY_ROAM_ALWAYS,
                                      WLC_SET_VAR, FALSE, 0) != BCME_OK) {
            DHD_ERROR(("failed to disable WBTEXT\n"));
        }
    }

#ifdef DHD_NON_DMA_M2M_CORRUPTION
    /* check pcie non dma loopback */
    if (dhd->op_mode == DHD_FLAG_MFG_MODE &&
        (dhd_bus_dmaxfer_lpbk(dhd, M2M_NON_DMA_LPBK) < 0)) {
        goto done;
    }
#endif /* DHD_NON_DMA_M2M_CORRUPTION */

    /* WNM capabilities */
    wnm_cap = 0
#ifdef WL11U
              | WL_WNM_BSSTRANS | WL_WNM_NOTIF
#endif // endif
        ;
#if defined(WL_MBO) && defined(WL_OCE)
    if (FW_SUPPORTED(dhd, estm)) {
        wnm_cap |= WL_WNM_ESTM;
    }
#endif /* WL_MBO && WL_OCE */
    if (dhd_iovar(dhd, 0, "wnm", (char *)&wnm_cap, sizeof(wnm_cap), NULL, 0,
                  TRUE) < 0) {
        DHD_ERROR(("failed to set WNM capabilities\n"));
    }

    if (FW_SUPPORTED(dhd, ecounters) && enable_ecounter) {
        dhd_ecounter_configure(dhd, TRUE);
    }

    /* store the preserve log set numbers */
    if (dhd_get_preserve_log_numbers(dhd, &dhd->logset_prsrv_mask) != BCME_OK) {
        DHD_ERROR(("%s: Failed to get preserve log # !\n", __FUNCTION__));
    }

#ifdef WL_MONITOR
    if (FW_SUPPORTED(dhd, monitor)) {
        dhd->monitor_enable = TRUE;
        DHD_ERROR(("%s: Monitor mode is enabled in FW cap\n", __FUNCTION__));
    } else {
        dhd->monitor_enable = FALSE;
        DHD_ERROR(
            ("%s: Monitor mode is not enabled in FW cap\n", __FUNCTION__));
    }
#endif /* WL_MONITOR */

#ifdef CONFIG_SILENT_ROAM
    dhd->sroam_turn_on = TRUE;
    dhd->sroamed = FALSE;
#endif /* CONFIG_SILENT_ROAM */

    dhd_conf_postinit_ioctls(dhd);
done:

    if (eventmask_msg) {
        MFREE(dhd->osh, eventmask_msg, msglen);
        eventmask_msg = NULL;
    }
    if (iov_buf) {
        MFREE(dhd->osh, iov_buf, WLC_IOCTL_SMLEN);
        iov_buf = NULL;
    }
#if defined(DHD_8021X_DUMP) && defined(SHOW_LOGTRACE)
    if (el_tag) {
        MFREE(dhd->osh, el_tag, sizeof(wl_el_tag_params_t));
        el_tag = NULL;
    }
#endif /* DHD_8021X_DUMP */
    return ret;
}

int dhd_iovar(dhd_pub_t *pub, int ifidx, char *name, char *param_buf,
              uint param_len, char *res_buf, uint res_len, int set)
{
    char *buf = NULL;
    int input_len;
    wl_ioctl_t ioc;
    int ret;

    if (res_len > WLC_IOCTL_MAXLEN || param_len > WLC_IOCTL_MAXLEN) {
        return BCME_BADARG;
    }

    input_len = strlen(name) + 1 + param_len;
    if (input_len > WLC_IOCTL_MAXLEN) {
        return BCME_BADARG;
    }

    buf = NULL;
    if (set) {
        if (res_buf || res_len != 0) {
            DHD_ERROR(("%s: SET wrong arguemnet\n", __FUNCTION__));
            ret = BCME_BADARG;
            goto exit;
        }
        buf = MALLOCZ(pub->osh, input_len);
        if (!buf) {
            DHD_ERROR(("%s: mem alloc failed\n", __FUNCTION__));
            ret = BCME_NOMEM;
            goto exit;
        }
        ret = bcm_mkiovar(name, param_buf, param_len, buf, input_len);
        if (!ret) {
            ret = BCME_NOMEM;
            goto exit;
        }

        ioc.cmd = WLC_SET_VAR;
        ioc.buf = buf;
        ioc.len = input_len;
        ioc.set = set;

        ret = dhd_wl_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
    } else {
        if (!res_buf || !res_len) {
            DHD_ERROR(
                ("%s: GET failed. resp_buf NULL or length 0.\n", __FUNCTION__));
            ret = BCME_BADARG;
            goto exit;
        }

        if (res_len < input_len) {
            DHD_INFO(("%s: res_len(%d) < input_len(%d)\n", __FUNCTION__,
                      res_len, input_len));
            buf = MALLOCZ(pub->osh, input_len);
            if (!buf) {
                DHD_ERROR(("%s: mem alloc failed\n", __FUNCTION__));
                ret = BCME_NOMEM;
                goto exit;
            }
            ret = bcm_mkiovar(name, param_buf, param_len, buf, input_len);
            if (!ret) {
                ret = BCME_NOMEM;
                goto exit;
            }

            ioc.cmd = WLC_GET_VAR;
            ioc.buf = buf;
            ioc.len = input_len;
            ioc.set = set;

            ret = dhd_wl_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
            if (ret == BCME_OK) {
                memcpy(res_buf, buf, res_len);
            }
        } else {
            memset(res_buf, 0, res_len);
            ret = bcm_mkiovar(name, param_buf, param_len, res_buf, res_len);
            if (!ret) {
                ret = BCME_NOMEM;
                goto exit;
            }

            ioc.cmd = WLC_GET_VAR;
            ioc.buf = res_buf;
            ioc.len = res_len;
            ioc.set = set;

            ret = dhd_wl_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
        }
    }
exit:
    if (buf) {
        MFREE(pub->osh, buf, input_len);
        buf = NULL;
    }
    return ret;
}

int dhd_getiovar(dhd_pub_t *pub, int ifidx, char *name, char *cmd_buf,
                 uint cmd_len, char **resptr, uint resp_len)
{
    int len = resp_len;
    int ret;
    char *buf = *resptr;
    wl_ioctl_t ioc;
    if (resp_len > WLC_IOCTL_MAXLEN) {
        return BCME_BADARG;
    }

    memset(buf, 0, resp_len);

    ret = bcm_mkiovar(name, cmd_buf, cmd_len, buf, len);
    if (ret == 0) {
        return BCME_BUFTOOSHORT;
    }

    memset(&ioc, 0, sizeof(ioc));

    ioc.cmd = WLC_GET_VAR;
    ioc.buf = buf;
    ioc.len = len;
    ioc.set = 0;

    ret = dhd_wl_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);

    return ret;
}

int dhd_change_mtu(dhd_pub_t *dhdp, int new_mtu, int ifidx)
{
    struct dhd_info *dhd = dhdp->info;
    struct net_device *dev = NULL;

    ASSERT(dhd && dhd->iflist[ifidx]);
    dev = dhd->iflist[ifidx]->net;
    ASSERT(dev);

#ifndef DHD_TPUT_PATCH
    if (netif_running(dev)) {
        DHD_ERROR(("%s: Must be down to change its MTU\n", dev->name));
        return BCME_NOTDOWN;
    }
#endif

#define DHD_MIN_MTU 1500
#define DHD_MAX_MTU 1752

    if ((new_mtu < DHD_MIN_MTU) || (new_mtu > DHD_MAX_MTU)) {
        DHD_ERROR(("%s: MTU size %d is invalid.\n", __FUNCTION__, new_mtu));
        return BCME_BADARG;
    }

    dev->mtu = new_mtu;
    return 0;
}

#ifdef CONFIG_AP6XXX_WIFI6_HDF
int dhd_netdev_changemtu_wrapper(struct net_device *netdev, int mtu)
{
    int bcmerror = BCME_OK;
    dhd_info_t *dhd = DHD_DEV_INFO(netdev);
    mtu &= 0xffff;
    bcmerror = dhd_change_mtu(&dhd->pub, mtu, 0);
    return bcmerror;
}
#endif

#ifdef ARP_OFFLOAD_SUPPORT
/* add or remove AOE host ip(s) (up to 8 IPs on the interface)  */
void aoe_update_host_ipv4_table(dhd_pub_t *dhd_pub, u32 ipa, bool add, int idx)
{
    u32 ipv4_buf[MAX_IPV4_ENTRIES]; /* temp save for AOE host_ip table */
    int i;
    int ret;

    bzero(ipv4_buf, sizeof(ipv4_buf));

    /* display what we've got */
    ret =
        dhd_arp_get_arp_hostip_table(dhd_pub, ipv4_buf, sizeof(ipv4_buf), idx);
    DHD_ARPOE(("%s: hostip table read from Dongle:\n", __FUNCTION__));
#ifdef AOE_DBG
    dhd_print_buf(ipv4_buf, 0x20, 0x4); /* max 8 IPs 4b each */
#endif                              // endif
    /* now we saved hoste_ip table, clr it in the dongle AOE */
    dhd_aoe_hostip_clr(dhd_pub, idx);

    if (ret) {
        DHD_ERROR(("%s failed\n", __FUNCTION__));
        return;
    }

    for (i = 0; i < MAX_IPV4_ENTRIES; i++) {
        if (add && (ipv4_buf[i] == 0)) {
            ipv4_buf[i] = ipa;
            add = FALSE; /* added ipa to local table  */
            DHD_ARPOE(
                ("%s: Saved new IP in temp arp_hostip[%d]\n", __FUNCTION__, i));
        } else if (ipv4_buf[i] == ipa) {
            ipv4_buf[i] = 0;
            DHD_ARPOE(("%s: removed IP:%x from temp table %d\n", __FUNCTION__,
                       ipa, i));
        }

        if (ipv4_buf[i] != 0) {
            /* add back host_ip entries from our local cache */
            dhd_arp_offload_add_ip(dhd_pub, ipv4_buf[i], idx);
            DHD_ARPOE(("%s: added IP:%x to dongle arp_hostip[%d]\n\n",
                       __FUNCTION__, ipv4_buf[i], i));
        }
    }
#ifdef AOE_DBG
    /* see the resulting hostip table */
    dhd_arp_get_arp_hostip_table(dhd_pub, ipv4_buf, sizeof(ipv4_buf), idx);
    DHD_ARPOE(("%s: read back arp_hostip table:\n", __FUNCTION__));
    dhd_print_buf(ipv4_buf, 0x20, 0x4); /* max 8 IPs 4b each */
#endif                              // endif
}

/*
 * Notification mechanism from kernel to our driver. This function is called by
 * the Linux kernel whenever there is an event related to an IP address. ptr :
 * kernel provided pointer to IP address that has changed
 */
static int dhd_inetaddr_notifier_call(struct notifier_block *this,
                                      unsigned long event, void *ptr)
{
    struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;

    dhd_info_t *dhd;
    dhd_pub_t *dhd_pub;
    int idx;

    if (!dhd_arp_enable) {
        return NOTIFY_DONE;
    }
    if (!ifa || !(ifa->ifa_dev->dev)) {
        return NOTIFY_DONE;
    }

    /* Filter notifications meant for non Broadcom devices */
    if ((ifa->ifa_dev->dev->netdev_ops != &dhd_ops_pri) &&
        (ifa->ifa_dev->dev->netdev_ops != &dhd_ops_virt)
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        && (ifa->ifa_dev->dev->netdev_ops != hdf_netdev_ops)
#endif
    ) {
#if defined(WL_ENABLE_P2P_IF)
        if (!wl_cfgp2p_is_ifops(ifa->ifa_dev->dev->netdev_ops))
#endif /* WL_ENABLE_P2P_IF */
            return NOTIFY_DONE;
    }

    dhd = DHD_DEV_INFO(ifa->ifa_dev->dev);
    if (!dhd) {
        return NOTIFY_DONE;
    }

    dhd_pub = &dhd->pub;

    if (dhd_pub->arp_version == 1) {
        idx = 0;
    } else {
        for (idx = 0; idx < DHD_MAX_IFS; idx++) {
            if (dhd->iflist[idx] &&
                dhd->iflist[idx]->net == ifa->ifa_dev->dev) {
                break;
            }
        }
        if (idx < DHD_MAX_IFS) {
            DHD_TRACE(("ifidx : %p %s %d\n", dhd->iflist[idx]->net,
                       dhd->iflist[idx]->name, dhd->iflist[idx]->idx));
        } else {
            DHD_ERROR(("Cannot find ifidx for(%s) set to 0\n", ifa->ifa_label));
            idx = 0;
        }
    }

    switch (event) {
        case NETDEV_UP:
            DHD_ARPOE(("%s: [%s] Up IP: 0x%x\n", __FUNCTION__, ifa->ifa_label,
                       ifa->ifa_address));

            /*
             * Skip if Bus is not in a state to transport the IOVAR
             * (or) the Dongle is not ready.
             */
            if (DHD_BUS_CHECK_DOWN_OR_DOWN_IN_PROGRESS(&dhd->pub) ||
                dhd->pub.busstate == DHD_BUS_LOAD) {
                DHD_ERROR(("%s: bus not ready, exit NETDEV_UP : %d\n",
                           __FUNCTION__, dhd->pub.busstate));
                if (dhd->pend_ipaddr) {
                    DHD_ERROR(("%s: overwrite pending ipaddr: 0x%x\n",
                               __FUNCTION__, dhd->pend_ipaddr));
                }
                dhd->pend_ipaddr = ifa->ifa_address;
                break;
            }

#ifdef AOE_IP_ALIAS_SUPPORT
            DHD_ARPOE(
                ("%s:add aliased IP to AOE hostip cache\n", __FUNCTION__));
            aoe_update_host_ipv4_table(dhd_pub, ifa->ifa_address, TRUE, idx);
#endif /* AOE_IP_ALIAS_SUPPORT */
            dhd_conf_set_garp(dhd_pub, idx, ifa->ifa_address, TRUE);
            break;

        case NETDEV_DOWN:
            DHD_ARPOE(("%s: [%s] Down IP: 0x%x\n", __FUNCTION__, ifa->ifa_label,
                       ifa->ifa_address));
            dhd->pend_ipaddr = 0;
#ifdef AOE_IP_ALIAS_SUPPORT
            DHD_ARPOE(("%s:interface is down, AOE clr all for this if\n",
                       __FUNCTION__));
            if ((dhd_pub->op_mode & DHD_FLAG_HOSTAP_MODE) ||
                (ifa->ifa_dev->dev != dhd_linux_get_primary_netdev(dhd_pub))) {
                aoe_update_host_ipv4_table(dhd_pub, ifa->ifa_address, FALSE,
                                           idx);
            } else
#endif /* AOE_IP_ALIAS_SUPPORT */
            {
                dhd_aoe_hostip_clr(&dhd->pub, idx);
                dhd_aoe_arp_clr(&dhd->pub, idx);
            }
            dhd_conf_set_garp(dhd_pub, idx, ifa->ifa_address, FALSE);
            break;

        default:
            DHD_ARPOE(("%s: do noting for [%s] Event: %lu\n", __func__,
                       ifa->ifa_label, event));
            break;
    }
    return NOTIFY_DONE;
}
#endif /* ARP_OFFLOAD_SUPPORT */

#if defined(CONFIG_IPV6) && defined(IPV6_NDO_SUPPORT)
/* Neighbor Discovery Offload: defered handler */
static void dhd_inet6_work_handler(void *dhd_info, void *event_data, u8 event)
{
    struct ipv6_work_info_t *ndo_work = (struct ipv6_work_info_t *)event_data;
    dhd_info_t *dhd = (dhd_info_t *)dhd_info;
    dhd_pub_t *dhdp;
    int ret;

    if (!dhd) {
        DHD_ERROR(("%s: invalid dhd_info\n", __FUNCTION__));
        goto done;
    }
    dhdp = &dhd->pub;

    if (event != DHD_WQ_WORK_IPV6_NDO) {
        DHD_ERROR(("%s: unexpected event\n", __FUNCTION__));
        goto done;
    }

    if (!ndo_work) {
        DHD_ERROR(("%s: ipv6 work info is not initialized\n", __FUNCTION__));
        return;
    }

    switch (ndo_work->event) {
        case NETDEV_UP:
#ifndef NDO_CONFIG_SUPPORT
            DHD_TRACE(("%s: Enable NDO \n ", __FUNCTION__));
            ret = dhd_ndo_enable(dhdp, TRUE);
            if (ret < 0) {
                DHD_ERROR(("%s: Enabling NDO Failed %d\n", __FUNCTION__, ret));
            }
#endif /* !NDO_CONFIG_SUPPORT */
            DHD_TRACE(("%s: Add a host ip for NDO\n", __FUNCTION__));
            if (dhdp->ndo_version > 0) {
                /* inet6 addr notifier called only for unicast address */
                ret = dhd_ndo_add_ip_with_type(dhdp, &ndo_work->ipv6_addr[0],
                                               WL_ND_IPV6_ADDR_TYPE_UNICAST,
                                               ndo_work->if_idx);
            } else {
                ret = dhd_ndo_add_ip(dhdp, &ndo_work->ipv6_addr[0],
                                     ndo_work->if_idx);
            }
            if (ret < 0) {
                DHD_ERROR(("%s: Adding a host ip for NDO failed %d\n",
                           __FUNCTION__, ret));
            }
            break;
        case NETDEV_DOWN:
            if (dhdp->ndo_version > 0) {
                DHD_TRACE(("%s: Remove a host ip for NDO\n", __FUNCTION__));
                ret = dhd_ndo_remove_ip_by_addr(dhdp, &ndo_work->ipv6_addr[0],
                                                ndo_work->if_idx);
            } else {
                DHD_TRACE(("%s: Clear host ip table for NDO \n", __FUNCTION__));
                ret = dhd_ndo_remove_ip(dhdp, ndo_work->if_idx);
            }
            if (ret < 0) {
                DHD_ERROR(("%s: Removing host ip for NDO failed %d\n",
                           __FUNCTION__, ret));
                goto done;
            }
#ifdef NDO_CONFIG_SUPPORT
            if (dhdp->ndo_host_ip_overflow) {
                ret = dhd_dev_ndo_update_inet6addr(
                    dhd_idx2net(dhdp, ndo_work->if_idx));
                if ((ret < 0) && (ret != BCME_NORESOURCE)) {
                    DHD_ERROR(("%s: Updating host ip for NDO failed %d\n",
                               __FUNCTION__, ret));
                    goto done;
                }
            }
#else  /* !NDO_CONFIG_SUPPORT */
                DHD_TRACE(("%s: Disable NDO\n ", __FUNCTION__));
                ret = dhd_ndo_enable(dhdp, FALSE);
                if (ret < 0) {
                    DHD_ERROR(
                        ("%s: disabling NDO Failed %d\n", __FUNCTION__, ret));
                    goto done;
                }
#endif /* NDO_CONFIG_SUPPORT */
            break;

        default:
            DHD_ERROR(("%s: unknown notifier event \n", __FUNCTION__));
            break;
    }
done:

    /* free ndo_work. alloced while scheduling the work */
    if (ndo_work) {
        kfree(ndo_work);
    }

    return;
} /* dhd_init_logstrs_array */

/*
 * Neighbor Discovery Offload: Called when an interface
 * is assigned with ipv6 address.
 * Handles only primary interface
 */
int dhd_inet6addr_notifier_call(struct notifier_block *this,
                                unsigned long event, void *ptr)
{
    dhd_info_t *dhd;
    dhd_pub_t *dhdp;
    struct inet6_ifaddr *inet6_ifa = ptr;
    struct ipv6_work_info_t *ndo_info;
    int idx;

    /* Filter notifications meant for non Broadcom devices */
    if (inet6_ifa->idev->dev->netdev_ops != &dhd_ops_pri
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        && inet6_ifa->idev->dev->netdev_ops != hdf_netdev_ops
#endif
    ) {
        return NOTIFY_DONE;
    }

    dhd = DHD_DEV_INFO(inet6_ifa->idev->dev);
    if (!dhd) {
        return NOTIFY_DONE;
    }
    dhdp = &dhd->pub;

    /* Supports only primary interface */
    idx = dhd_net2idx(dhd, inet6_ifa->idev->dev);
    if (idx != 0) {
        return NOTIFY_DONE;
    }

    /* FW capability */
    if (!FW_SUPPORTED(dhdp, ndoe)) {
        return NOTIFY_DONE;
    }

    ndo_info = (struct ipv6_work_info_t *)kzalloc(
        sizeof(struct ipv6_work_info_t), GFP_ATOMIC);
    if (!ndo_info) {
        DHD_ERROR(("%s: ipv6 work alloc failed\n", __FUNCTION__));
        return NOTIFY_DONE;
    }

    /* fill up ndo_info */
    ndo_info->event = event;
    ndo_info->if_idx = idx;
    memcpy(ndo_info->ipv6_addr, &inet6_ifa->addr, IPV6_ADDR_LEN);

    /* defer the work to thread as it may block kernel */
    dhd_deferred_schedule_work(dhd->dhd_deferred_wq, (void *)ndo_info,
                               DHD_WQ_WORK_IPV6_NDO, dhd_inet6_work_handler,
                               DHD_WQ_WORK_PRIORITY_LOW);
    return NOTIFY_DONE;
}
#endif /* CONFIG_IPV6 && IPV6_NDO_SUPPORT */

/* Network attach to be invoked from the bus probe handlers */
int dhd_attach_net(dhd_pub_t *dhdp, bool need_rtnl_lock)
{
    struct net_device *primary_ndev;
#ifdef GET_CUSTOM_MAC_ENABLE
    char hw_ether[62];
#endif /* GET_CUSTOM_MAC_ENABLE */
#if defined(GET_CUSTOM_MAC_ENABLE) || defined(GET_OTP_MAC_ENABLE)
    int ret = BCME_ERROR;
#endif /* GET_CUSTOM_MAC_ENABLE || GET_OTP_MAC_ENABLE */

    BCM_REFERENCE(primary_ndev);

#ifdef GET_CUSTOM_MAC_ENABLE
    ret = wifi_platform_get_mac_addr(dhdp->adapter, hw_ether, 0);
    if (!ret) {
        bcopy(hw_ether, dhdp->mac.octet, ETHER_ADDR_LEN);
    }
#endif /* GET_CUSTOM_MAC_ENABLE */

#ifdef GET_OTP_MAC_ENABLE
    if (ret && memcmp(&ether_null, &dhdp->conf->otp_mac, ETHER_ADDR_LEN)) {
        bcopy(&dhdp->conf->otp_mac, &dhdp->mac, ETHER_ADDR_LEN);
    }
#endif /* GET_OTP_MAC_ENABLE */

    /* Register primary net device */
    if (dhd_register_if(dhdp, 0, need_rtnl_lock) != 0) {
        return BCME_ERROR;
    }

#if defined(WL_CFG80211)
    primary_ndev = dhd_linux_get_primary_netdev(dhdp);
    if (wl_cfg80211_net_attach(primary_ndev) < 0) {
        /* fail the init */
        dhd_remove_if(dhdp, 0, TRUE);
        return BCME_ERROR;
    }
#endif /* WL_CFG80211 */
    return BCME_OK;
}

int dhd_register_if(dhd_pub_t *dhdp, int ifidx, bool need_rtnl_lock)
{
    dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
    dhd_if_t *ifp;
    struct net_device *net = NULL;
    int err = 0;
    uint8 temp_addr[ETHER_ADDR_LEN] = {0x00, 0x90, 0x4c, 0x11, 0x22, 0x33};
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    struct NetDevice *hnetdev = NULL;
#endif

    DHD_TRACE(("%s: ifidx %d\n", __FUNCTION__, ifidx));

    if (dhd == NULL || dhd->iflist[ifidx] == NULL) {
        DHD_ERROR(("%s: Invalid Interface\n", __FUNCTION__));
        return BCME_ERROR;
    }

    ASSERT(dhd && dhd->iflist[ifidx]);
    ifp = dhd->iflist[ifidx];
    net = ifp->net;
    ASSERT(net && (ifp->idx == ifidx));

    ASSERT(!net->netdev_ops);

#ifdef CONFIG_AP6XXX_WIFI6_HDF
    DHD_ERROR(("%s: bdh6 register netdev=%s hdfidx=%d, ifidx=%d, %p, %p\n",
               __FUNCTION__, net->name, g_hdf_ifidx, ifidx, net->netdev_ops,
               &dhd_ops_virt));
#else
    net->netdev_ops = &dhd_ops_virt;
    DHD_ERROR(("%s: bdh6 register netdev=%s ifidx=%d\n", __FUNCTION__,
               net->name, ifidx));
#endif

    /* Ok, link into the network layer... */
    if (ifidx == 0) {
        /*
         * device functions for the primary interface only
         */
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        DHD_ERROR(("%s: for primary inf don't set ops %d\n", __FUNCTION__,
                   g_hdf_ifidx));
#else
        net->netdev_ops = &dhd_ops_pri;
#endif
        if (!ETHER_ISNULLADDR(dhd->pub.mac.octet)) {
            memcpy(temp_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
        }
    } else {
        /*
         * We have to use the primary MAC for virtual interfaces
         */
        memcpy(temp_addr, ifp->mac_addr, ETHER_ADDR_LEN);
        /*
         * OHOS sets the locally administered bit to indicate that this is a
         * portable hotspot.  This will not work in simultaneous AP/STA mode,
         * nor with P2P.  Need to set the Donlge's MAC address, and then use
         * that.
         */
        if (!memcmp(temp_addr, dhd->iflist[0]->mac_addr, ETHER_ADDR_LEN)) {
            DHD_ERROR(
                ("%s interface [%s]: set locally administered bit in MAC\n",
                 __func__, net->name));
            temp_addr[0] |= 0x02;
        }
    }

    net->hard_header_len = ETH_HLEN + dhd->pub.hdrlen;
    net->ethtool_ops = &dhd_ethtool_ops;

#if defined(WL_WIRELESS_EXT)
#if WIRELESS_EXT < 19
    net->get_wireless_stats = dhd_get_wireless_stats;
#endif /* WIRELESS_EXT < 19 */
#if WIRELESS_EXT > 12
    net->wireless_handlers = &wl_iw_handler_def;
#endif /* WIRELESS_EXT > 12 */
#endif /* defined(WL_WIRELESS_EXT) */

    dhd->pub.rxsz = DBUS_RX_BUFFER_SIZE_DHD(net);

#ifdef WLMESH
    if (ifidx >= 0x2 && dhdp->conf->fw_type == FW_TYPE_MESH) {
        temp_addr[0x4] ^= 0x80;
        temp_addr[0x4] += ifidx;
        temp_addr[0x5] += ifidx;
    }
#endif
    memcpy(net->dev_addr, temp_addr, ETHER_ADDR_LEN);

    if (ifidx == 0) {
        printf("%s\n", dhd_version);
    } else {
#ifdef WL_EXT_IAPSTA
        wl_ext_iapsta_update_net_device(net, ifidx);
#endif /* WL_EXT_IAPSTA */
        if (dhd->pub.up == 1) {
            if (_dhd_set_mac_address(dhd, ifidx, net->dev_addr, FALSE) == 0) {
                DHD_INFO(("%s: MACID is overwritten\n", __FUNCTION__));
            } else {
                DHD_ERROR(
                    ("%s: _dhd_set_mac_address() failed\n", __FUNCTION__));
            }
        }
    }

#ifdef CONFIG_AP6XXX_WIFI6_HDF
    DHD_ERROR(("%s: for hdf inf %d don't register netdev\n", __FUNCTION__,
               g_hdf_ifidx));

    // update mac address
    hnetdev = GetHdfNetDeviceByLinuxInf(net);
    memcpy(hnetdev->macAddr, net->dev_addr, ETHER_ADDR_LEN);
    // Call linux register_netdev()
    err = NetDeviceAdd(hnetdev);
    DHD_ERROR(("%s:NetDeviceAdd %s ret=%d\n", __FUNCTION__, net->name, err));
    // }
#else
    if (need_rtnl_lock) {
        err = register_netdev(net);
    } else {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 12, 0)) && defined(WL_CFG80211)
        err = cfg80211_register_netdevice(net);
#else
        err = register_netdevice(net);
#endif
    }
#endif
    if (err != 0) {
        DHD_ERROR(("couldn't register the net device [%s], err %d\n", net->name,
                   err));
        goto fail;
    }
#ifdef WL_EVENT
    wl_ext_event_attach_netdev(net, ifidx, ifp->bssidx);
#endif /* WL_EVENT */
#ifdef WL_ESCAN
    wl_escan_event_attach(net, ifidx);
#endif /* WL_ESCAN */
#ifdef WL_EXT_IAPSTA
    wl_ext_iapsta_attach_netdev(net, ifidx, ifp->bssidx);
    wl_ext_iapsta_attach_name(net, ifidx);
#endif /* WL_EXT_IAPSTA */

    printf("Register interface [%s]  MAC: " MACDBG "\n\n", net->name,
           MAC2STRDBG(net->dev_addr));

#if defined(SOFTAP) && defined(WL_WIRELESS_EXT) && !defined(WL_CFG80211)
#endif // endif

#if (defined(BCMPCIE) || defined(BCMLXSDMMC) || defined(BCMDBUS))
    if (ifidx == 0) {
#if defined(BCMLXSDMMC) && !defined(DHD_PRELOAD)
        up(&dhd_registration_sem);
#endif /* BCMLXSDMMC */
        if (!dhd_download_fw_on_driverload) {
#ifdef WL_CFG80211
            wl_terminate_event_handler(net);
#endif /* WL_CFG80211 */
#if defined(DHD_LB_RXP)
            __skb_queue_purge(&dhd->rx_pend_queue);
#endif /* DHD_LB_RXP */

#if defined(DHD_LB_TXP)
            skb_queue_purge(&dhd->tx_pend_queue);
#endif /* DHD_LB_TXP */

#ifdef SHOW_LOGTRACE
            /* Release the skbs from queue for WLC_E_TRACE event */
            dhd_event_logtrace_flush_queue(dhdp);
#endif /* SHOW_LOGTRACE */

#if defined(BCMPCIE) && defined(DHDTCPACK_SUPPRESS)
            dhd_tcpack_suppress_set(dhdp, TCPACK_SUP_OFF);
#endif /* BCMPCIE && DHDTCPACK_SUPPRESS */
            dhd_net_bus_devreset(net, TRUE);
#ifdef BCMLXSDMMC
            dhd_net_bus_suspend(net);
#endif /* BCMLXSDMMC */
            wifi_platform_set_power(dhdp->info->adapter, FALSE,
                                    WIFI_TURNOFF_DELAY);
#if defined(BT_OVER_SDIO)
            dhd->bus_user_count--;
#endif /* BT_OVER_SDIO */
        }
    }
#endif /* (BCMPCIE || BCMLXSDMMC) */
    return 0;

fail:
#ifndef CONFIG_AP6XXX_WIFI6_HDF
    net->netdev_ops = NULL;
#endif
    return err;
}

void dhd_bus_detach(dhd_pub_t *dhdp)
{
    dhd_info_t *dhd;

    DHD_TRACE(("%s: Enter\n", __FUNCTION__));

    if (dhdp) {
        dhd = (dhd_info_t *)dhdp->info;
        if (dhd) {
            /*
             * In case of OHOS cfg80211 driver, the bus is down in dhd_stop,
             *  calling stop again will cuase SD read/write errors.
             */
            if (dhd->pub.busstate != DHD_BUS_DOWN &&
                dhd_download_fw_on_driverload) {
                /* Stop the protocol module */
                dhd_prot_stop(&dhd->pub);

                /* Stop the bus module */
#ifdef BCMDBUS
                /* Force Dongle terminated */
                if (dhd_wl_ioctl_cmd(dhdp, WLC_TERMINATED, NULL, 0, TRUE, 0) <
                    0) {
                    DHD_ERROR(
                        ("%s Setting WLC_TERMINATED failed\n", __FUNCTION__));
                }
                dbus_stop(dhd->pub.bus);
                dhd->pub.busstate = DHD_BUS_DOWN;
#else
                dhd_bus_stop(dhd->pub.bus, TRUE);
#endif /* BCMDBUS */
            }

#if defined(OOB_INTR_ONLY) ||                       \
    defined(BCMPCIE_OOB_HOST_WAKE)
            dhd_bus_oob_intr_unregister(dhdp);
#endif /* OOB_INTR_ONLY || BCMPCIE_OOB_HOST_WAKE */
        }
    }
}

void dhd_detach(dhd_pub_t *dhdp)
{
    dhd_info_t *dhd;
    unsigned long flags;
    int timer_valid = FALSE;
    struct net_device *dev;
#ifdef WL_CFG80211
    struct bcm_cfg80211 *cfg = NULL;
#endif // endif
    if (!dhdp) {
        return;
    }

    dhd = (dhd_info_t *)dhdp->info;
    if (!dhd) {
        return;
    }

    dev = dhd->iflist[0]->net;

    if (dev) {
        rtnl_lock();
#if defined(WL_CFG80211) && defined(WL_STATIC_IF)
        if (dhd->dhd_state & DHD_ATTACH_STATE_CFG80211) {
            wl_cfg80211_static_if_dev_close(dev);
        }
#endif /* WL_CFG80211 && WL_STATIC_IF */
        if (dev->flags & IFF_UP) {
            /* If IFF_UP is still up, it indicates that
             * "ifconfig wlan0 down" hasn't been called.
             * So invoke dev_close explicitly here to
             * bring down the interface.
             */
            DHD_TRACE(
                ("IFF_UP flag is up. Enforcing dev_close from detach \n"));
            dev_close(dev);
        }
        rtnl_unlock();
    }

    DHD_TRACE(("%s: Enter state 0x%x\n", __FUNCTION__, dhd->dhd_state));

    DHD_ERROR(("%s: making dhdpub up FALSE\n", __FUNCTION__));
    dhd->pub.up = 0;
    if (!(dhd->dhd_state & DHD_ATTACH_STATE_DONE)) {
        /* Give sufficient time for threads to start running in case
         * dhd_attach() has failed
         */
        OSL_SLEEP(0x64);
    }
#ifdef DHD_WET
    dhd_free_wet_info(&dhd->pub, dhd->pub.wet_info);
#endif /* DHD_WET */
#if defined(BCM_DNGL_EMBEDIMAGE) || defined(BCM_REQUEST_FW)
#endif /* defined(BCM_DNGL_EMBEDIMAGE) || defined(BCM_REQUEST_FW) */

#ifdef PROP_TXSTATUS
#ifdef DHD_WLFC_THREAD
    if (dhd->pub.wlfc_thread) {
        kthread_stop(dhd->pub.wlfc_thread);
        dhdp->wlfc_thread_go = TRUE;
        wake_up_interruptible(&dhdp->wlfc_wqhead);
    }
    dhd->pub.wlfc_thread = NULL;
#endif /* DHD_WLFC_THREAD */
#endif /* PROP_TXSTATUS */

#ifdef WL_CFG80211
    if (dev) {
        wl_cfg80211_down(dev);
    }
#endif /* WL_CFG80211 */

    if (dhd->dhd_state & DHD_ATTACH_STATE_PROT_ATTACH) {
        dhd_bus_detach(dhdp);
#ifdef BCMPCIE
        if (is_reboot == SYS_RESTART) {
            extern bcmdhd_wifi_platdata_t *dhd_wifi_platdata;
            if (dhd_wifi_platdata && !dhdp->dongle_reset) {
                dhdpcie_bus_clock_stop(dhdp->bus);
                wifi_platform_set_power(dhd_wifi_platdata->adapters, FALSE,
                                        WIFI_TURNOFF_DELAY);
            }
        }
#endif /* BCMPCIE */
#ifndef PCIE_FULL_DONGLE
        if (dhdp->prot) {
            dhd_prot_detach(dhdp);
        }
#endif /* !PCIE_FULL_DONGLE */
    }

#ifdef ARP_OFFLOAD_SUPPORT
    if (dhd_inetaddr_notifier_registered) {
        dhd_inetaddr_notifier_registered = FALSE;
        unregister_inetaddr_notifier(&dhd_inetaddr_notifier);
    }
#endif /* ARP_OFFLOAD_SUPPORT */
#if defined(CONFIG_IPV6) && defined(IPV6_NDO_SUPPORT)
    if (dhd_inet6addr_notifier_registered) {
        dhd_inet6addr_notifier_registered = FALSE;
        unregister_inet6addr_notifier(&dhd_inet6addr_notifier);
    }
#endif /* CONFIG_IPV6 && IPV6_NDO_SUPPORT */
#if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND)
    if (dhd->dhd_state & DHD_ATTACH_STATE_EARLYSUSPEND_DONE) {
        if (dhd->early_suspend.suspend) {
            unregister_early_suspend(&dhd->early_suspend);
        }
    }
#endif /* CONFIG_HAS_EARLYSUSPEND && DHD_USE_EARLYSUSPEND */

#if defined(WL_WIRELESS_EXT)
    if (dhd->dhd_state & DHD_ATTACH_STATE_WL_ATTACH) {
        /* Detatch and unlink in the iw */
        wl_iw_detach(dev);
    }
#endif /* defined(WL_WIRELESS_EXT) */
#ifdef WL_EXT_GENL
    wl_ext_genl_deinit(dev);
#endif
#ifdef WL_EXT_IAPSTA
    wl_ext_iapsta_dettach(dev);
#endif /* WL_EXT_IAPSTA */
#ifdef WL_ESCAN
    wl_escan_detach(dev);
#endif /* WL_ESCAN */
#ifdef WL_EVENT
    wl_ext_event_dettach(dhdp);
#endif /* WL_EVENT */

#ifdef DHD_ULP
    dhd_ulp_deinit(dhd->pub.osh, dhdp);
#endif /* DHD_ULP */

    /* delete all interfaces, start with virtual  */
    if (dhd->dhd_state & DHD_ATTACH_STATE_ADD_IF) {
        int i = 1;
        dhd_if_t *ifp;

        /* Cleanup virtual interfaces */
        dhd_net_if_lock_local(dhd);
        for (i = 1; i < DHD_MAX_IFS; i++) {
            if (dhd->iflist[i]) {
                dhd_remove_if(&dhd->pub, i, TRUE);
            }
        }
        dhd_net_if_unlock_local(dhd);

        /*  delete primary interface 0 */
        ifp = dhd->iflist[0];
        if (ifp && ifp->net) {
#ifdef WL_CFG80211
            cfg = wl_get_cfg(ifp->net);
#endif // endif
            /* in unregister_netdev case, the interface gets freed by
             * net->destructor (which is set to free_netdev)
             */
            if (ifp->net->reg_state == NETREG_UNINITIALIZED) {
                free_netdev(ifp->net);
            } else {
#if defined(ARGOS_NOTIFY_CB)
                argos_register_notifier_deinit();
#endif // endif
#ifdef SET_RPS_CPUS
                custom_rps_map_clear(ifp->net->_rx);
#endif /* SET_RPS_CPUS */
                netif_tx_disable(ifp->net);
#ifdef CONFIG_AP6XXX_WIFI6_HDF
                IFP_NET_DESTRUCTOR = NULL;
#endif
                unregister_netdev(ifp->net);
            }
#ifdef PCIE_FULL_DONGLE
            ifp->net = DHD_NET_DEV_NULL;
#else
            ifp->net = NULL;
#endif /* PCIE_FULL_DONGLE */

#ifdef DHD_L2_FILTER
            bcm_l2_filter_arp_table_update(dhdp->osh, ifp->phnd_arp_table, TRUE,
                                           NULL, FALSE, dhdp->tickcnt);
            deinit_l2_filter_arp_table(dhdp->osh, ifp->phnd_arp_table);
            ifp->phnd_arp_table = NULL;
#endif /* DHD_L2_FILTER */

            dhd_if_del_sta_list(ifp);

            MFREE(dhd->pub.osh, ifp, sizeof(*ifp));
            dhd->iflist[0] = NULL;
#ifdef WL_CFG80211
            if (cfg && cfg->wdev) {
                cfg->wdev->netdev = NULL;
            }
#endif
        }
    }

    /* Clear the watchdog timer */
    DHD_GENERAL_LOCK(&dhd->pub, flags);
    timer_valid = dhd->wd_timer_valid;
    dhd->wd_timer_valid = FALSE;
    DHD_GENERAL_UNLOCK(&dhd->pub, flags);
    if (timer_valid) {
        del_timer_sync(&dhd->timer);
    }
    DHD_DISABLE_RUNTIME_PM(&dhd->pub);

#ifdef BCMDBUS
    tasklet_kill(&dhd->tasklet);
#else
    if (dhd->dhd_state & DHD_ATTACH_STATE_THREADS_CREATED) {
        if (dhd->thr_wdt_ctl.thr_pid >= 0) {
            PROC_STOP(&dhd->thr_wdt_ctl);
        }

        if (dhd->rxthread_enabled && dhd->thr_rxf_ctl.thr_pid >= 0) {
            PROC_STOP(&dhd->thr_rxf_ctl);
        }

        if (dhd->thr_dpc_ctl.thr_pid >= 0) {
            PROC_STOP(&dhd->thr_dpc_ctl);
        } else {
            tasklet_kill(&dhd->tasklet);
        }
    }
#endif /* BCMDBUS */

#ifdef WL_NATOE
    if (dhd->pub.nfct) {
        dhd_ct_close(dhd->pub.nfct);
    }
#endif /* WL_NATOE */

#ifdef DHD_LB
    if (dhd->dhd_state & DHD_ATTACH_STATE_LB_ATTACH_DONE) {
        /* Clear the flag first to avoid calling the cpu notifier */
        dhd->dhd_state &= ~DHD_ATTACH_STATE_LB_ATTACH_DONE;

        /* Kill the Load Balancing Tasklets */
#ifdef DHD_LB_RXP
        cancel_work_sync(&dhd->rx_napi_dispatcher_work);
        __skb_queue_purge(&dhd->rx_pend_queue);
#endif /* DHD_LB_RXP */
#ifdef DHD_LB_TXP
        cancel_work_sync(&dhd->tx_dispatcher_work);
        tasklet_kill(&dhd->tx_tasklet);
        __skb_queue_purge(&dhd->tx_pend_queue);
#endif /* DHD_LB_TXP */
#ifdef DHD_LB_TXC
        cancel_work_sync(&dhd->tx_compl_dispatcher_work);
        tasklet_kill(&dhd->tx_compl_tasklet);
#endif /* DHD_LB_TXC */
#ifdef DHD_LB_RXC
        tasklet_kill(&dhd->rx_compl_tasklet);
#endif /* DHD_LB_RXC */

        /* Unregister from CPU Hotplug framework */
        dhd_unregister_cpuhp_callback(dhd);

        dhd_cpumasks_deinit(dhd);
        DHD_LB_STATS_DEINIT(&dhd->pub);
    }
#endif /* DHD_LB */

#ifdef CSI_SUPPORT
    dhd_csi_deinit(dhdp);
#endif /* CSI_SUPPORT */

#if defined(DNGL_AXI_ERROR_LOGGING) && defined(DHD_USE_WQ_FOR_DNGL_AXI_ERROR)
    cancel_work_sync(&dhd->axi_error_dispatcher_work);
#endif /* DNGL_AXI_ERROR_LOGGING && DHD_USE_WQ_FOR_DNGL_AXI_ERROR */

    DHD_SSSR_MEMPOOL_DEINIT(&dhd->pub);

#ifdef WL_CFG80211
    if (dhd->dhd_state & DHD_ATTACH_STATE_CFG80211) {
        if (!cfg) {
            DHD_ERROR(("cfg NULL!\n"));
            ASSERT(0);
        } else {
            wl_cfg80211_detach(cfg);
            dhd_monitor_uninit();
        }
    }
#endif // endif

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
    destroy_workqueue(dhd->tx_wq);
    dhd->tx_wq = NULL;
    destroy_workqueue(dhd->rx_wq);
    dhd->rx_wq = NULL;
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */
#ifdef DEBUGABILITY
    if (dhdp->dbg) {
#ifdef DBG_PKT_MON
        dhd_os_dbg_detach_pkt_monitor(dhdp);
        dhd_os_spin_lock_deinit(dhd->pub.osh, dhd->pub.dbg->pkt_mon_lock);
#endif /* DBG_PKT_MON */
    }
#endif /* DEBUGABILITY */
    if (dhdp->dbg) {
        dhd_os_dbg_detach(dhdp);
    }
#ifdef DHD_STATUS_LOGGING
    dhd_detach_statlog(dhdp);
#endif /* DHD_STATUS_LOGGING */
#ifdef DHD_PKTDUMP_ROAM
    dhd_dump_pkt_deinit(dhdp);
#endif /* DHD_PKTDUMP_ROAM */
#ifdef SHOW_LOGTRACE
    /* Release the skbs from queue for WLC_E_TRACE event */
    dhd_event_logtrace_flush_queue(dhdp);

    /* Wait till event logtrace context finishes */
    dhd_cancel_logtrace_process_sync(dhd);

    /* Remove ring proc entries */
    dhd_dbg_ring_proc_destroy(&dhd->pub);

    if (dhd->dhd_state & DHD_ATTACH_LOGTRACE_INIT) {
        if (dhd->event_data.fmts) {
            MFREE(dhd->pub.osh, dhd->event_data.fmts,
                  dhd->event_data.fmts_size);
            dhd->event_data.fmts = NULL;
        }
        if (dhd->event_data.raw_fmts) {
            MFREE(dhd->pub.osh, dhd->event_data.raw_fmts,
                  dhd->event_data.raw_fmts_size);
            dhd->event_data.raw_fmts = NULL;
        }
        if (dhd->event_data.raw_sstr) {
            MFREE(dhd->pub.osh, dhd->event_data.raw_sstr,
                  dhd->event_data.raw_sstr_size);
            dhd->event_data.raw_sstr = NULL;
        }
        if (dhd->event_data.rom_raw_sstr) {
            MFREE(dhd->pub.osh, dhd->event_data.rom_raw_sstr,
                  dhd->event_data.rom_raw_sstr_size);
            dhd->event_data.rom_raw_sstr = NULL;
        }
        dhd->dhd_state &= ~DHD_ATTACH_LOGTRACE_INIT;
    }
#endif /* SHOW_LOGTRACE */
#ifdef PNO_SUPPORT
    if (dhdp->pno_state) {
        dhd_pno_deinit(dhdp);
    }
#endif // endif
#ifdef RTT_SUPPORT
    if (dhdp->rtt_state) {
        dhd_rtt_deinit(dhdp);
    }
#endif // endif
#if defined(CONFIG_PM_SLEEP)
    if (dhd_pm_notifier_registered) {
        unregister_pm_notifier(&dhd->pm_notifier);
        dhd_pm_notifier_registered = FALSE;
    }
#endif /* CONFIG_PM_SLEEP */

#ifdef DEBUG_CPU_FREQ
    if (dhd->new_freq) {
        free_percpu(dhd->new_freq);
    }
    dhd->new_freq = NULL;
    cpufreq_unregister_notifier(&dhd->freq_trans, CPUFREQ_TRANSITION_NOTIFIER);
#endif // endif
    DHD_TRACE(("wd wakelock count:%d\n", dhd->wakelock_wd_counter));
#ifdef CONFIG_HAS_WAKELOCK
    dhd->wakelock_wd_counter = 0;
    wake_lock_destroy(&dhd->wl_wdwake);
    // terence 20161023: can not destroy wl_wifi when wlan down, it will happen
    // null pointer in dhd_ioctl_entry
    wake_lock_destroy(&dhd->wl_wifi);
#endif /* CONFIG_HAS_WAKELOCK */
    if (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT) {
        DHD_OS_WAKE_LOCK_DESTROY(dhd);
    }

#ifdef DHDTCPACK_SUPPRESS
    /* This will free all MEM allocated for TCPACK SUPPRESS */
    dhd_tcpack_suppress_set(&dhd->pub, TCPACK_SUP_OFF);
#endif /* DHDTCPACK_SUPPRESS */

#ifdef PCIE_FULL_DONGLE
    dhd_flow_rings_deinit(dhdp);
    if (dhdp->prot) {
        dhd_prot_detach(dhdp);
    }
#endif // endif

#if defined(WLTDLS) && defined(PCIE_FULL_DONGLE)
    dhd_free_tdls_peer_list(dhdp);
#endif // endif

#ifdef DUMP_IOCTL_IOV_LIST
    dhd_iov_li_delete(dhdp, &(dhdp->dump_iovlist_head));
#endif /* DUMP_IOCTL_IOV_LIST */
#ifdef DHD_DEBUG
    /* memory waste feature list initilization */
    dhd_mw_list_delete(dhdp, &(dhdp->mw_list_head));
#endif /* DHD_DEBUG */
#ifdef WL_MONITOR
    dhd_del_monitor_if(dhd);
#endif /* WL_MONITOR */

#ifdef DHD_ERPOM
    if (dhdp->enable_erpom) {
        dhdp->pom_func_deregister(&dhdp->pom_wlan_handler);
    }
#endif /* DHD_ERPOM */

    cancel_work_sync(&dhd->dhd_hang_process_work);

    /* Prefer adding de-init code above this comment unless necessary.
     * The idea is to cancel work queue, sysfs and flags at the end.
     */
    dhd_deferred_work_deinit(dhd->dhd_deferred_wq);
    dhd->dhd_deferred_wq = NULL;

    /* log dump related buffers should be freed after wq is purged */
#ifdef DHD_LOG_DUMP
    dhd_log_dump_deinit(&dhd->pub);
#endif /* DHD_LOG_DUMP */
#if defined(BCMPCIE)
    if (dhdp->extended_trap_data) {
        MFREE(dhdp->osh, dhdp->extended_trap_data,
              BCMPCIE_EXT_TRAP_DATA_MAXLEN);
        dhdp->extended_trap_data = NULL;
    }
#ifdef DNGL_AXI_ERROR_LOGGING
    if (dhdp->axi_err_dump) {
        MFREE(dhdp->osh, dhdp->axi_err_dump, sizeof(dhd_axi_error_dump_t));
        dhdp->axi_err_dump = NULL;
    }
#endif /* DNGL_AXI_ERROR_LOGGING */
#endif /* BCMPCIE */

#ifdef DHD_DUMP_MNGR
    if (dhd->pub.dump_file_manage) {
        MFREE(dhd->pub.osh, dhd->pub.dump_file_manage,
              sizeof(dhd_dump_file_manage_t));
    }
#endif /* DHD_DUMP_MNGR */
    dhd_sysfs_exit(dhd);
    dhd->pub.fw_download_status = FW_UNLOADED;

#if defined(BT_OVER_SDIO)
    mutex_destroy(&dhd->bus_user_lock);
#endif /* BT_OVER_SDIO */
    dhd_conf_detach(dhdp);
} /* dhd_detach */

void dhd_free(dhd_pub_t *dhdp)
{
    dhd_info_t *dhd;
    DHD_TRACE(("%s: Enter\n", __FUNCTION__));
    if (dhdp) {
        int i;
        for (i = 0; i < ARRAYSIZE(dhdp->reorder_bufs); i++) {
            if (dhdp->reorder_bufs[i]) {
                reorder_info_t *ptr;
                uint32 buf_size = sizeof(struct reorder_info);

                ptr = dhdp->reorder_bufs[i];

                buf_size += ((ptr->max_idx + 1) * sizeof(void *));
                DHD_REORDER(("free flow id buf %d, maxidx is %d, buf_size %d\n",
                             i, ptr->max_idx, buf_size));

                MFREE(dhdp->osh, dhdp->reorder_bufs[i], buf_size);
                dhdp->reorder_bufs[i] = NULL;
            }
        }

        dhd_sta_pool_fini(dhdp, DHD_MAX_STA);

        dhd = (dhd_info_t *)dhdp->info;
        if (dhdp->soc_ram) {
#if defined(CONFIG_DHD_USE_STATIC_BUF) && defined(DHD_USE_STATIC_MEMDUMP)
            DHD_OS_PREFREE(dhdp, dhdp->soc_ram, dhdp->soc_ram_length);
#else
            MFREE(dhdp->osh, dhdp->soc_ram, dhdp->soc_ram_length);
#endif /* CONFIG_DHD_USE_STATIC_BUF && DHD_USE_STATIC_MEMDUMP */
            dhdp->soc_ram = NULL;
        }
        if (dhd != NULL) {
            /* If pointer is allocated by dhd_os_prealloc then avoid MFREE */
            if (dhd != (dhd_info_t *)dhd_os_prealloc(
                           dhdp, DHD_PREALLOC_DHD_INFO, 0, FALSE)) {
                MFREE(dhd->pub.osh, dhd, sizeof(*dhd));
            }
            dhd = NULL;
        }
    }
}

void dhd_clear(dhd_pub_t *dhdp)
{
    DHD_TRACE(("%s: Enter\n", __FUNCTION__));
    if (dhdp) {
        int i;
#ifdef DHDTCPACK_SUPPRESS
        /* Clean up timer/data structure for any remaining/pending packet or
         * timer. */
        dhd_tcpack_info_tbl_clean(dhdp);
#endif /* DHDTCPACK_SUPPRESS */
        for (i = 0; i < ARRAYSIZE(dhdp->reorder_bufs); i++) {
            if (dhdp->reorder_bufs[i]) {
                reorder_info_t *ptr;
                uint32 buf_size = sizeof(struct reorder_info);

                ptr = dhdp->reorder_bufs[i];

                buf_size += ((ptr->max_idx + 1) * sizeof(void *));
                DHD_REORDER(("free flow id buf %d, maxidx is %d, buf_size %d\n",
                             i, ptr->max_idx, buf_size));

                MFREE(dhdp->osh, dhdp->reorder_bufs[i], buf_size);
                dhdp->reorder_bufs[i] = NULL;
            }
        }

        dhd_sta_pool_clear(dhdp, DHD_MAX_STA);

        if (dhdp->soc_ram) {
#if defined(CONFIG_DHD_USE_STATIC_BUF) && defined(DHD_USE_STATIC_MEMDUMP)
            DHD_OS_PREFREE(dhdp, dhdp->soc_ram, dhdp->soc_ram_length);
#else
            MFREE(dhdp->osh, dhdp->soc_ram, dhdp->soc_ram_length);
#endif /* CONFIG_DHD_USE_STATIC_BUF && DHD_USE_STATIC_MEMDUMP */
            dhdp->soc_ram = NULL;
        }
    }
}

static void dhd_module_cleanup(void)
{
    printf("%s: Enter\n", __FUNCTION__);

    dhd_bus_unregister();

    wl_ohos_exit();

    dhd_wifi_platform_unregister_drv();
    printf("%s: Exit\n", __FUNCTION__);
}

#ifdef CONFIG_AP6XXX_WIFI6_HDF
void
#else
static void __exit
#endif
dhd_module_exit(void)
{
    atomic_set(&exit_in_progress, 1);
    dhd_module_cleanup();
    unregister_reboot_notifier(&dhd_reboot_notifier);
    dhd_destroy_to_notifier_skt();
}
#ifdef CONFIG_AP6XXX_WIFI6_HDF
int
#else
static int __init
#endif
dhd_module_init(void)
{
    int err;
    int retry = POWERUP_MAX_RETRY;

    printf("%s: in %s\n", __FUNCTION__, dhd_version);

    DHD_PERIM_RADIO_INIT();

    if (firmware_path[0] != '\0') {
        strncpy(fw_bak_path, firmware_path, MOD_PARAM_PATHLEN);
        fw_bak_path[MOD_PARAM_PATHLEN - 1] = '\0';
    }

    if (nvram_path[0] != '\0') {
        strncpy(nv_bak_path, nvram_path, MOD_PARAM_PATHLEN);
        nv_bak_path[MOD_PARAM_PATHLEN - 1] = '\0';
    }

    do {
        err = dhd_wifi_platform_register_drv();
        if (!err) {
            register_reboot_notifier(&dhd_reboot_notifier);
            break;
        } else {
            DHD_ERROR(("%s: Failed to load the driver, try cnt %d\n",
                       __FUNCTION__, retry));
            strncpy(firmware_path, fw_bak_path, MOD_PARAM_PATHLEN);
            firmware_path[MOD_PARAM_PATHLEN - 1] = '\0';
            strncpy(nvram_path, nv_bak_path, MOD_PARAM_PATHLEN);
            nvram_path[MOD_PARAM_PATHLEN - 1] = '\0';
        }
    } while (retry--);

    dhd_create_to_notifier_skt();

    if (err) {
        DHD_ERROR(
            ("%s: Failed to load driver max retry reached**\n", __FUNCTION__));
    } else {
        if (!dhd_download_fw_on_driverload) {
            dhd_driver_init_done = TRUE;
        }
    }

    printf("%s: Exit err=%d\n", __FUNCTION__, err);
    return err;
}

static int dhd_reboot_callback(struct notifier_block *this, unsigned long code,
                               void *unused)
{
    DHD_TRACE(("%s: code = %ld\n", __FUNCTION__, code));
    if (code == SYS_RESTART) {
#ifdef BCMPCIE
        is_reboot = code;
#endif /* BCMPCIE */
    }
    return NOTIFY_DONE;
}

#ifndef CONFIG_AP6XXX_WIFI6_HDF
#if defined(CONFIG_DEFERRED_INITCALLS) && !defined(EXYNOS_PCIE_MODULE_PATCH)
#if defined(CONFIG_MACH_UNIVERSAL7420) || defined(CONFIG_SOC_EXYNOS8890) ||    \
    defined(CONFIG_ARCH_MSM8996) || defined(CONFIG_ARCH_MSM8998) ||            \
    defined(CONFIG_SOC_EXYNOS8895) || defined(CONFIG_SOC_EXYNOS9810) ||        \
    defined(CONFIG_ARCH_SDM845) || defined(CONFIG_SOC_EXYNOS9820) ||           \
    defined(CONFIG_ARCH_SM8150)
deferred_module_init_sync(dhd_module_init);
#else
deferred_module_init(dhd_module_init);
#endif /* CONFIG_MACH_UNIVERSAL7420 || CONFIG_SOC_EXYNOS8890 ||                \
        * CONFIG_ARCH_MSM8996 || CONFIG_ARCH_MSM8998 || CONFIG_SOC_EXYNOS8895  \
        * CONFIG_SOC_EXYNOS9810 || CONFIG_ARCH_SDM845 || CONFIG_SOC_EXYNOS9820 \
        * CONFIG_ARCH_SM8150                                                   \
        */
#elif defined(USE_LATE_INITCALL_SYNC)
    late_initcall_sync(dhd_module_init);
#else
    late_initcall(dhd_module_init);
#endif /* USE_LATE_INITCALL_SYNC */

module_exit(dhd_module_exit);
#endif

/*
 * OS specific functions required to implement DHD driver in OS independent way
 */
int dhd_os_proto_block(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        DHD_PERIM_UNLOCK(pub);

        down(&dhd->proto_sem);

        DHD_PERIM_LOCK(pub);
        return 1;
    }

    return 0;
}

int dhd_os_proto_unblock(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        up(&dhd->proto_sem);
        return 1;
    }

    return 0;
}

void dhd_os_dhdiovar_lock(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        mutex_lock(&dhd->dhd_iovar_mutex);
    }
}

void dhd_os_dhdiovar_unlock(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        mutex_unlock(&dhd->dhd_iovar_mutex);
    }
}

void dhd_os_logdump_lock(dhd_pub_t *pub)
{
    dhd_info_t *dhd = NULL;

    if (!pub) {
        return;
    }

    dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        mutex_lock(&dhd->logdump_lock);
    }
}

void dhd_os_logdump_unlock(dhd_pub_t *pub)
{
    dhd_info_t *dhd = NULL;

    if (!pub) {
        return;
    }

    dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        mutex_unlock(&dhd->logdump_lock);
    }
}

unsigned long dhd_os_dbgring_lock(void *lock)
{
    if (!lock) {
        return 0;
    }

    mutex_lock((struct mutex *)lock);

    return 0;
}

void dhd_os_dbgring_unlock(void *lock, unsigned long flags)
{
    BCM_REFERENCE(flags);

    if (!lock) {
        return;
    }

    mutex_unlock((struct mutex *)lock);
}

unsigned int dhd_os_get_ioctl_resp_timeout(void)
{
    return ((unsigned int)dhd_ioctl_timeout_msec);
}

void dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec)
{
    dhd_ioctl_timeout_msec = (int)timeout_msec;
}

int dhd_os_ioctl_resp_wait(dhd_pub_t *pub, uint *condition)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    int timeout;

    /* Convert timeout in millsecond to jiffies */
    timeout = msecs_to_jiffies(dhd_ioctl_timeout_msec);

    DHD_PERIM_UNLOCK(pub);

    timeout = wait_event_timeout(dhd->ioctl_resp_wait, (*condition), timeout);

    DHD_PERIM_LOCK(pub);

    return timeout;
}

int dhd_os_ioctl_resp_wake(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    wake_up(&dhd->ioctl_resp_wait);
    return 0;
}

int dhd_os_d3ack_wait(dhd_pub_t *pub, uint *condition)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    int timeout;

    /* Convert timeout in millsecond to jiffies */
    timeout = msecs_to_jiffies(D3_ACK_RESP_TIMEOUT);

    DHD_PERIM_UNLOCK(pub);

    timeout = wait_event_timeout(dhd->d3ack_wait, (*condition), timeout);

    DHD_PERIM_LOCK(pub);

    return timeout;
}

int dhd_os_d3ack_wake(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    wake_up(&dhd->d3ack_wait);
    return 0;
}

int dhd_os_busbusy_wait_negation(dhd_pub_t *pub, uint *condition)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    int timeout;

    /* Wait for bus usage contexts to gracefully exit within some timeout value
     * Set time out to little higher than dhd_ioctl_timeout_msec,
     * so that IOCTL timeout should not get affected.
     */
    /* Convert timeout in millsecond to jiffies */
    timeout = msecs_to_jiffies(DHD_BUS_BUSY_TIMEOUT);

    timeout = wait_event_timeout(dhd->dhd_bus_busy_state_wait, !(*condition),
                                 timeout);

    return timeout;
}

/*
 * Wait until the condition *var == condition is met.
 * Returns 0 if the @condition evaluated to false after the timeout elapsed
 * Returns 1 if the @condition evaluated to true
 */
int dhd_os_busbusy_wait_condition(dhd_pub_t *pub, uint *var, uint condition)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    int timeout;

    /* Convert timeout in millsecond to jiffies */
    timeout = msecs_to_jiffies(DHD_BUS_BUSY_TIMEOUT);

    timeout = wait_event_timeout(dhd->dhd_bus_busy_state_wait,
                                 (*var == condition), timeout);

    return timeout;
}

/*
 * Wait until the '(*var & bitmask) == condition' is met.
 * Returns 0 if the @condition evaluated to false after the timeout elapsed
 * Returns 1 if the @condition evaluated to true
 */
int dhd_os_busbusy_wait_bitmask(dhd_pub_t *pub, uint *var, uint bitmask,
                                uint condition)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    int timeout;

    /* Convert timeout in millsecond to jiffies */
    timeout = msecs_to_jiffies(DHD_BUS_BUSY_TIMEOUT);

    timeout = wait_event_timeout(dhd->dhd_bus_busy_state_wait,
                                 ((*var & bitmask) == condition), timeout);

    return timeout;
}

int dhd_os_dmaxfer_wait(dhd_pub_t *pub, uint *condition)
{
    int ret = 0;
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    int timeout;

    timeout = msecs_to_jiffies(IOCTL_DMAXFER_TIMEOUT);

    DHD_PERIM_UNLOCK(pub);
    ret = wait_event_timeout(dhd->dmaxfer_wait, (*condition), timeout);
    DHD_PERIM_LOCK(pub);

    return ret;
}

int dhd_os_dmaxfer_wake(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    wake_up(&dhd->dmaxfer_wait);
    return 0;
}

void dhd_os_tx_completion_wake(dhd_pub_t *dhd)
{
    /* Call wmb() to make sure before waking up the other event value gets
     * updated */
    OSL_SMP_WMB();
    wake_up(&dhd->tx_completion_wait);
}

/* Fix compilation error for FC11 */
INLINE int dhd_os_busbusy_wake(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    /* Call wmb() to make sure before waking up the other event value gets
     * updated */
    OSL_SMP_WMB();
    wake_up(&dhd->dhd_bus_busy_state_wait);
    return 0;
}

void dhd_os_wd_timer_extend(void *bus, bool extend)
{
#ifndef BCMDBUS
    dhd_pub_t *pub = bus;
    dhd_info_t *dhd = (dhd_info_t *)pub->info;

    if (extend) {
        dhd_os_wd_timer(bus, WATCHDOG_EXTEND_INTERVAL);
    } else {
        dhd_os_wd_timer(bus, dhd->default_wd_interval);
    }
#endif /* !BCMDBUS */
}

void dhd_os_wd_timer(void *bus, uint wdtick)
{
#ifndef BCMDBUS
    dhd_pub_t *pub = bus;
    dhd_info_t *dhd = (dhd_info_t *)pub->info;
    unsigned long flags;

    DHD_TRACE(("%s: Enter\n", __FUNCTION__));

    if (!dhd) {
        DHD_ERROR(("%s: dhd NULL\n", __FUNCTION__));
        return;
    }

    DHD_GENERAL_LOCK(pub, flags);

    /* don't start the wd until fw is loaded */
    if (pub->busstate == DHD_BUS_DOWN) {
        DHD_GENERAL_UNLOCK(pub, flags);
#ifdef BCMSDIO
        if (!wdtick) {
            DHD_OS_WD_WAKE_UNLOCK(pub);
        }
#endif /* BCMSDIO */
        return;
    }

    /* Totally stop the timer */
    if (!wdtick && dhd->wd_timer_valid == TRUE) {
        dhd->wd_timer_valid = FALSE;
        DHD_GENERAL_UNLOCK(pub, flags);
        del_timer_sync(&dhd->timer);
#ifdef BCMSDIO
        DHD_OS_WD_WAKE_UNLOCK(pub);
#endif /* BCMSDIO */
        return;
    }

    if (wdtick) {
#ifdef BCMSDIO
        DHD_OS_WD_WAKE_LOCK(pub);
        dhd_watchdog_ms = (uint)wdtick;
#endif /* BCMSDIO */
        /* Re arm the timer, at last watchdog period */
        mod_timer(&dhd->timer, jiffies + msecs_to_jiffies(dhd_watchdog_ms));
        dhd->wd_timer_valid = TRUE;
    }
    DHD_GENERAL_UNLOCK(pub, flags);
#endif /* !BCMDBUS */
}

void *dhd_os_open_image1(dhd_pub_t *pub, char *filename)
{
    struct file *fp;
    int size;

    fp = filp_open(filename, O_RDONLY, 0);
    /*
     * 2.6.11 (FC4) supports filp_open() but later revs don't?
     * Alternative:
     * fp = open_namei(AT_FDCWD, filename, O_RD, 0);
     * ???
     */
    if (IS_ERR(fp)) {
        fp = NULL;
        goto err;
    }

    if (!S_ISREG(file_inode(fp)->i_mode)) {
        DHD_ERROR(("%s: %s is not regular file\n", __FUNCTION__, filename));
        fp = NULL;
        goto err;
    }

    size = i_size_read(file_inode(fp));
    if (size <= 0) {
        DHD_ERROR(
            ("%s: %s file size invalid %d\n", __FUNCTION__, filename, size));
        fp = NULL;
        goto err;
    }

    DHD_ERROR(
        ("%s: %s (%d bytes) open success\n", __FUNCTION__, filename, size));

err:
    return fp;
}

int dhd_os_get_image_block(char *buf, int len, void *image)
{
    struct file *fp = (struct file *)image;
    int rdlen;
    int size;

    if (!image) {
        return 0;
    }

    size = i_size_read(file_inode(fp));
    rdlen = compat_kernel_read(fp, fp->f_pos, buf, MIN(len, size));
    if (len >= size && size != rdlen) {
        return -EIO;
    }

    if (rdlen > 0) {
        fp->f_pos += rdlen;
    }
    return rdlen;
}

#if defined(BT_OVER_SDIO)
int dhd_os_gets_image(dhd_pub_t *pub, char *str, int len, void *image)
{
    struct file *fp = (struct file *)image;
    int rd_len;
    uint str_len = 0;
    char *str_end = NULL;

    if (!image) {
        return 0;
    }

    rd_len = compat_kernel_read(fp, fp->f_pos, str, len);
    str_end = strnchr(str, len, '\n');
    if (str_end == NULL) {
        goto err;
    }
    str_len = (uint)(str_end - str);

    /* Advance file pointer past the string length */
    fp->f_pos += str_len + 1;
    bzero(str_end, rd_len - str_len);

err:
    return str_len;
}
#endif /* defined (BT_OVER_SDIO) */

int dhd_os_get_image_size(void *image)
{
    struct file *fp = (struct file *)image;
    int size;
    if (!image) {
        return 0;
    }

    size = i_size_read(file_inode(fp));

    return size;
}

void dhd_os_close_image1(dhd_pub_t *pub, void *image)
{
    if (image) {
        filp_close((struct file *)image, NULL);
    }
}

void dhd_os_sdlock(dhd_pub_t *pub)
{
    dhd_info_t *dhd;

    dhd = (dhd_info_t *)(pub->info);

#ifdef BCMDBUS
    spin_lock_bh(&dhd->sdlock);
#else
    if (dhd_dpc_prio >= 0) {
        down(&dhd->sdsem);
    } else {
        spin_lock_bh(&dhd->sdlock);
    }
#endif /* !BCMDBUS */
}

void dhd_os_sdunlock(dhd_pub_t *pub)
{
    dhd_info_t *dhd;

    dhd = (dhd_info_t *)(pub->info);

#ifdef BCMDBUS
    spin_unlock_bh(&dhd->sdlock);
#else
    if (dhd_dpc_prio >= 0) {
        up(&dhd->sdsem);
    } else {
        spin_unlock_bh(&dhd->sdlock);
    }
#endif /* !BCMDBUS */
}

void dhd_os_sdlock_txq(dhd_pub_t *pub)
{
    dhd_info_t *dhd;

    dhd = (dhd_info_t *)(pub->info);
#ifdef BCMDBUS
    spin_lock_irqsave(&dhd->txqlock, dhd->txqlock_flags);
#else
    spin_lock_bh(&dhd->txqlock);
#endif /* BCMDBUS */
}

void dhd_os_sdunlock_txq(dhd_pub_t *pub)
{
    dhd_info_t *dhd;

    dhd = (dhd_info_t *)(pub->info);
#ifdef BCMDBUS
    spin_unlock_irqrestore(&dhd->txqlock, dhd->txqlock_flags);
#else
    spin_unlock_bh(&dhd->txqlock);
#endif /* BCMDBUS */
}

unsigned long dhd_os_sdlock_txoff(dhd_pub_t *pub)
{
    dhd_info_t *dhd;
    unsigned long flags = 0;

    dhd = (dhd_info_t *)(pub->info);
    spin_lock_irqsave(&dhd->txoff_lock, flags);

    return flags;
}

void dhd_os_sdunlock_txoff(dhd_pub_t *pub, unsigned long flags)
{
    dhd_info_t *dhd;

    dhd = (dhd_info_t *)(pub->info);
    spin_unlock_irqrestore(&dhd->txoff_lock, flags);
}

void dhd_os_sdlock_rxq(dhd_pub_t *pub)
{
}

void dhd_os_sdunlock_rxq(dhd_pub_t *pub)
{
}

static void dhd_os_rxflock(dhd_pub_t *pub)
{
    dhd_info_t *dhd;

    dhd = (dhd_info_t *)(pub->info);
    spin_lock_bh(&dhd->rxf_lock);
}

static void dhd_os_rxfunlock(dhd_pub_t *pub)
{
    dhd_info_t *dhd;

    dhd = (dhd_info_t *)(pub->info);
    spin_unlock_bh(&dhd->rxf_lock);
}

#ifdef DHDTCPACK_SUPPRESS
unsigned long dhd_os_tcpacklock(dhd_pub_t *pub)
{
    dhd_info_t *dhd;
    unsigned long flags = 0;

    dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
#ifdef BCMSDIO
        spin_lock_bh(&dhd->tcpack_lock);
#else
            spin_lock_irqsave(&dhd->tcpack_lock, flags);
#endif /* BCMSDIO */
    }

    return flags;
}

void dhd_os_tcpackunlock(dhd_pub_t *pub, unsigned long flags)
{
    dhd_info_t *dhd;

#ifdef BCMSDIO
    BCM_REFERENCE(flags);
#endif /* BCMSDIO */

    dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
#ifdef BCMSDIO
        spin_unlock_bh(&dhd->tcpack_lock);
#else
            spin_unlock_irqrestore(&dhd->tcpack_lock, flags);
#endif /* BCMSDIO */
    }
}
#endif /* DHDTCPACK_SUPPRESS */

uint8 *dhd_os_prealloc(dhd_pub_t *dhdpub, int section, uint size,
                       bool kmalloc_if_fail)
{
    uint8 *buf;
    gfp_t flags = CAN_SLEEP() ? GFP_KERNEL : GFP_ATOMIC;

    buf = (uint8 *)wifi_platform_prealloc(dhdpub->info->adapter, section, size);
    if (buf == NULL && kmalloc_if_fail) {
        buf = kmalloc(size, flags);
    }

    return buf;
}

void dhd_os_prefree(dhd_pub_t *dhdpub, void *addr, uint size)
{
}

#if defined(WL_WIRELESS_EXT)
struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev)
{
    int res = 0;
    dhd_info_t *dhd = DHD_DEV_INFO(dev);

    if (!dhd->pub.up) {
        return NULL;
    }

    if (!(dev->flags & IFF_UP)) {
        return NULL;
    }

    res = wl_iw_get_wireless_stats(dev, &dhd->iw.wstats);
    if (res == 0) {
        return &dhd->iw.wstats;
    } else {
        return NULL;
    }
}
#endif /* defined(WL_WIRELESS_EXT) */

static int dhd_wl_host_event(dhd_info_t *dhd, int ifidx, void *pktdata,
                             uint16 pktlen, wl_event_msg_t *event, void **data)
{
    int bcmerror = 0;
#ifdef WL_CFG80211
    unsigned long flags = 0;
#endif /* WL_CFG80211 */
    ASSERT(dhd != NULL);

#ifdef SHOW_LOGTRACE
    bcmerror = wl_process_host_event(&dhd->pub, &ifidx, pktdata, pktlen, event,
                                     data, &dhd->event_data);
#else
    bcmerror = wl_process_host_event(&dhd->pub, &ifidx, pktdata, pktlen, event,
                                     data, NULL);
#endif /* SHOW_LOGTRACE */
    if (unlikely(bcmerror != BCME_OK)) {
        return bcmerror;
    }

    if (ntoh32(event->event_type) == WLC_E_IF) {
        /* WLC_E_IF event types are consumed by wl_process_host_event.
         * For ifadd/del ops, the netdev ptr may not be valid at this
         * point. so return before invoking cfg80211/wext handlers.
         */
        return BCME_OK;
    }

#ifdef WL_EVENT
    wl_ext_event_send(dhd->pub.event_params, event, *data);
#endif

#ifdef WL_CFG80211
    if (dhd->iflist[ifidx]->net) {
        spin_lock_irqsave(&dhd->pub.up_lock, flags);
        if (dhd->pub.up) {
            wl_cfg80211_event(dhd->iflist[ifidx]->net, event, *data);
        }
        spin_unlock_irqrestore(&dhd->pub.up_lock, flags);
    }
#endif /* defined(WL_CFG80211) */

    return (bcmerror);
}

/* send up locally generated event */
void dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event, void *data)
{
    switch (ntoh32(event->event_type)) {
        /* Handle error case or further events here */
        default:
            break;
    }
}

#ifdef LOG_INTO_TCPDUMP
void dhd_sendup_log(dhd_pub_t *dhdp, void *data, int data_len)
{
    struct sk_buff *p, *skb;
    uint32 pktlen;
    int len;
    dhd_if_t *ifp;
    dhd_info_t *dhd;
    uchar *skb_data;
    int ifidx = 0;
    struct ether_header eth;

    pktlen = sizeof(eth) + data_len;
    dhd = dhdp->info;

    if ((p = PKTGET(dhdp->osh, pktlen, FALSE))) {
        ASSERT(ISALIGNED((uintptr)PKTDATA(dhdp->osh, p), sizeof(uint32)));

        bcopy(&dhdp->mac, &eth.ether_dhost, ETHER_ADDR_LEN);
        bcopy(&dhdp->mac, &eth.ether_shost, ETHER_ADDR_LEN);
        ETHER_TOGGLE_LOCALADDR(&eth.ether_shost);
        eth.ether_type = hton16(ETHER_TYPE_BRCM);

        bcopy((void *)&eth, PKTDATA(dhdp->osh, p), sizeof(eth));
        bcopy(data, PKTDATA(dhdp->osh, p) + sizeof(eth), data_len);
        skb = PKTTONATIVE(dhdp->osh, p);
        skb_data = skb->data;
        len = skb->len;

        ifidx = dhd_ifname2idx(dhd, "wlan0");
        ifp = dhd->iflist[ifidx];
        if (ifp == NULL) {
            ifp = dhd->iflist[0];
        }

        ASSERT(ifp);
        skb->dev = ifp->net;
        skb->protocol = eth_type_trans(skb, skb->dev);
        skb->data = skb_data;
        skb->len = len;

        /* Strip header, count, deliver upward */
        skb_pull(skb, ETH_HLEN);

        bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE, __FUNCTION__, __LINE__);
        /* Send the packet */
        if (in_interrupt()) {
            netif_rx(skb);
        } else {
            netif_rx_ni(skb);
        }
    } else {
        /* Could not allocate a sk_buf */
        DHD_ERROR(("%s: unable to alloc sk_buf\n", __FUNCTION__));
    }
}
#endif /* LOG_INTO_TCPDUMP */

void dhd_wait_for_event(dhd_pub_t *dhd, bool *lockvar)
{
#if defined(BCMSDIO)
    struct dhd_info *dhdinfo = dhd->info;

    int timeout = msecs_to_jiffies(IOCTL_RESP_TIMEOUT);

    dhd_os_sdunlock(dhd);
    wait_event_timeout(dhdinfo->ctrl_wait, (*lockvar == FALSE), timeout);
    dhd_os_sdlock(dhd);
#endif /* defined(BCMSDIO) */
    return;
} /* dhd_init_static_strs_array */

void dhd_wait_event_wakeup(dhd_pub_t *dhd)
{
#if defined(BCMSDIO)
    struct dhd_info *dhdinfo = dhd->info;
    if (waitqueue_active(&dhdinfo->ctrl_wait)) {
        wake_up(&dhdinfo->ctrl_wait);
    }
#endif // endif
    return;
}

#if defined(BCMSDIO) || defined(BCMPCIE) || defined(BCMDBUS)
int dhd_net_bus_devreset(struct net_device *dev, uint8 flag)
{
    int ret;

    dhd_info_t *dhd = DHD_DEV_INFO(dev);

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
    if (pm_runtime_get_sync(dhd_bus_to_dev(dhd->pub.bus)) < 0) {
        return BCME_ERROR;
    }
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

    if (flag == TRUE) {
        /* Issue wl down command before resetting the chip */
        if (dhd_wl_ioctl_cmd(&dhd->pub, WLC_DOWN, NULL, 0, TRUE, 0) < 0) {
            DHD_TRACE(("%s: wl down failed\n", __FUNCTION__));
        }
#ifdef PROP_TXSTATUS
        if (dhd->pub.wlfc_enabled) {
            dhd_wlfc_deinit(&dhd->pub);
        }
#endif /* PROP_TXSTATUS */
#ifdef PNO_SUPPORT
        if (dhd->pub.pno_state) {
            dhd_pno_deinit(&dhd->pub);
        }
#endif // endif
#ifdef RTT_SUPPORT
        if (dhd->pub.rtt_state) {
            dhd_rtt_deinit(&dhd->pub);
        }
#endif /* RTT_SUPPORT */

#if defined(DBG_PKT_MON) && !defined(DBG_PKT_MON_INIT_DEFAULT)
        dhd_os_dbg_detach_pkt_monitor(&dhd->pub);
#endif /* DBG_PKT_MON */
    }

#ifdef BCMSDIO
    if (!flag) {
        dhd_update_fw_nv_path(dhd);
        /* update firmware and nvram path to sdio bus */
        dhd_bus_update_fw_nv_path(dhd->pub.bus, dhd->fw_path, dhd->nv_path,
                                  dhd->clm_path, dhd->conf_path);
    }
#endif /* BCMSDIO */

    ret = dhd_bus_devreset(&dhd->pub, flag);

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
    pm_runtime_mark_last_busy(dhd_bus_to_dev(dhd->pub.bus));
    pm_runtime_put_autosuspend(dhd_bus_to_dev(dhd->pub.bus));
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

    if (flag) {
        /* Clear some flags for recovery logic */
        dhd->pub.dongle_trap_occured = 0;
        dhd->pub.iovar_timeout_occured = 0;
#ifdef PCIE_FULL_DONGLE
        dhd->pub.d3ack_timeout_occured = 0;
        dhd->pub.livelock_occured = 0;
        dhd->pub.pktid_audit_failed = 0;
#endif /* PCIE_FULL_DONGLE */
        dhd->pub.iface_op_failed = 0;
        dhd->pub.scan_timeout_occurred = 0;
        dhd->pub.scan_busy_occurred = 0;
        dhd->pub.smmu_fault_occurred = 0;
    }

    if (ret) {
        DHD_ERROR(("%s: dhd_bus_devreset: %d\n", __FUNCTION__, ret));
    }

    return ret;
}

#ifdef BCMSDIO
int dhd_net_bus_suspend(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    return dhd_bus_suspend(&dhd->pub);
}

int dhd_net_bus_resume(struct net_device *dev, uint8 stage)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    return dhd_bus_resume(&dhd->pub, stage);
}

#endif /* BCMSDIO */
#endif /* BCMSDIO || BCMPCIE || BCMDBUS */

int net_os_set_suspend_disable(struct net_device *dev, int val)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    int ret = 0;

    if (dhd) {
        ret = dhd->pub.suspend_disable_flag;
        dhd->pub.suspend_disable_flag = val;
    }
    return ret;
}

int net_os_set_suspend(struct net_device *dev, int val, int force)
{
    int ret = 0;
    dhd_info_t *dhd = DHD_DEV_INFO(dev);

    if (dhd && (dhd->pub.conf->suspend_mode == EARLY_SUSPEND ||
                dhd->pub.conf->suspend_mode == SUSPEND_MODE_2)) {
        if (dhd->pub.conf->suspend_mode == EARLY_SUSPEND && !val) {
            dhd_conf_set_suspend_resume(&dhd->pub, val);
        }
#ifdef CONFIG_MACH_UNIVERSAL7420
#endif /* CONFIG_MACH_UNIVERSAL7420 */
#if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND)
        ret = dhd_set_suspend(val, &dhd->pub);
#else
        ret = dhd_suspend_resume_helper(dhd, val, force);
#endif // endif
#ifdef WL_CFG80211
        wl_cfg80211_update_power_mode(dev);
#endif // endif
        if (dhd->pub.conf->suspend_mode == EARLY_SUSPEND && val) {
            dhd_conf_set_suspend_resume(&dhd->pub, val);
        }
    }
    return ret;
}

int net_os_set_suspend_bcn_li_dtim(struct net_device *dev, int val)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);

    if (dhd) {
        DHD_ERROR(("%s: Set bcn_li_dtim in suspend %d\n", __FUNCTION__, val));
        dhd->pub.suspend_bcn_li_dtim = val;
    }

    return 0;
}

int net_os_set_max_dtim_enable(struct net_device *dev, int val)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);

    if (dhd) {
        DHD_ERROR(("%s: use MAX bcn_li_dtim in suspend %s\n", __FUNCTION__,
                   (val ? "Enable" : "Disable")));
        if (val) {
            dhd->pub.max_dtim_enable = TRUE;
        } else {
            dhd->pub.max_dtim_enable = FALSE;
        }
    } else {
        return -1;
    }

    return 0;
}

#ifdef DISABLE_DTIM_IN_SUSPEND
int net_os_set_disable_dtim_in_suspend(struct net_device *dev, int val)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);

    if (dhd) {
        DHD_ERROR(("%s: Disable bcn_li_dtim in suspend %s\n", __FUNCTION__,
                   (val ? "Enable" : "Disable")));
        if (val) {
            dhd->pub.disable_dtim_in_suspend = TRUE;
        } else {
            dhd->pub.disable_dtim_in_suspend = FALSE;
        }
    } else {
        return -1;
    }

    return 0;
}
#endif /* DISABLE_DTIM_IN_SUSPEND */

#ifdef PKT_FILTER_SUPPORT
int net_os_rxfilter_add_remove(struct net_device *dev, int add_remove, int num)
{
    int ret = 0;

#ifndef GAN_LITE_NAT_KEEPALIVE_FILTER
    dhd_info_t *dhd = DHD_DEV_INFO(dev);

    if (!dhd_master_mode) {
        add_remove = !add_remove;
    }
    DHD_ERROR(
        ("%s: add_remove = %d, num = %d\n", __FUNCTION__, add_remove, num));
    if (!dhd || (num == DHD_UNICAST_FILTER_NUM)) {
        return 0;
    }

#ifdef BLOCK_IPV6_PACKET
    /* customer want to use NO IPV6 packets only */
    if (num == DHD_MULTICAST6_FILTER_NUM) {
        return 0;
    }
#endif /* BLOCK_IPV6_PACKET */

    if (num >= dhd->pub.pktfilter_count) {
        return -EINVAL;
    }

    ret = dhd_packet_filter_add_remove(&dhd->pub, add_remove, num);
#endif /* !GAN_LITE_NAT_KEEPALIVE_FILTER */

    return ret;
}

int dhd_os_enable_packet_filter(dhd_pub_t *dhdp, int val)

{
    int ret = 0;

    /* Packet filtering is set only if we still in early-suspend and
     * we need either to turn it ON or turn it OFF
     * We can always turn it OFF in case of early-suspend, but we turn it
     * back ON only if suspend_disable_flag was not set
     */
    if (dhdp && dhdp->up) {
        if (dhdp->in_suspend) {
            if (!val || (val && !dhdp->suspend_disable_flag)) {
                dhd_enable_packet_filter(val, dhdp);
            }
        }
    }
    return ret;
}

/* function to enable/disable packet for Network device */
int net_os_enable_packet_filter(struct net_device *dev, int val)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);

    DHD_ERROR(("%s: val = %d\n", __FUNCTION__, val));
    return dhd_os_enable_packet_filter(&dhd->pub, val);
}
#endif /* PKT_FILTER_SUPPORT */

int dhd_dev_init_ioctl(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    int ret;

    if ((ret = dhd_sync_with_dongle(&dhd->pub)) < 0) {
        goto done;
    }

done:
    return ret;
}

int dhd_dev_get_feature_set(struct net_device *dev)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *ptr = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *ptr = *(dhd_info_t **)netdev_priv(dev);
#endif
    dhd_pub_t *dhd = (&ptr->pub);
    int feature_set = 0;

    if (FW_SUPPORTED(dhd, sta)) {
        feature_set |= WIFI_FEATURE_INFRA;
    }
    if (FW_SUPPORTED(dhd, dualband)) {
        feature_set |= WIFI_FEATURE_INFRA_5G;
    }
    if (FW_SUPPORTED(dhd, p2p)) {
        feature_set |= WIFI_FEATURE_P2P;
    }
    if (dhd->op_mode & DHD_FLAG_HOSTAP_MODE) {
        feature_set |= WIFI_FEATURE_SOFT_AP;
    }
    if (FW_SUPPORTED(dhd, tdls)) {
        feature_set |= WIFI_FEATURE_TDLS;
    }
    if (FW_SUPPORTED(dhd, vsdb)) {
        feature_set |= WIFI_FEATURE_TDLS_OFFCHANNEL;
    }
    if (FW_SUPPORTED(dhd, nan)) {
        feature_set |= WIFI_FEATURE_NAN;
        /* NAN is essentail for d2d rtt */
        if (FW_SUPPORTED(dhd, rttd2d)) {
            feature_set |= WIFI_FEATURE_D2D_RTT;
        }
    }
#ifdef RTT_SUPPORT
    if (dhd->rtt_supported) {
        feature_set |= WIFI_FEATURE_D2D_RTT;
        feature_set |= WIFI_FEATURE_D2AP_RTT;
    }
#endif /* RTT_SUPPORT */
#ifdef LINKSTAT_SUPPORT
    feature_set |= WIFI_FEATURE_LINKSTAT;
#endif /* LINKSTAT_SUPPORT */

#if defined(PNO_SUPPORT)
    if (dhd_is_pno_supported(dhd)) {
        feature_set |= WIFI_FEATURE_PNO;
    }
#endif /* PNO_SUPPORT */
#ifdef RSSI_MONITOR_SUPPORT
    if (FW_SUPPORTED(dhd, rssi_mon)) {
        feature_set |= WIFI_FEATURE_RSSI_MONITOR;
    }
#endif /* RSSI_MONITOR_SUPPORT */
#ifdef WL11U
    feature_set |= WIFI_FEATURE_HOTSPOT;
#endif /* WL11U */
#ifdef NDO_CONFIG_SUPPORT
    feature_set |= WIFI_FEATURE_CONFIG_NDO;
#endif /* NDO_CONFIG_SUPPORT */
#ifdef KEEP_ALIVE
    feature_set |= WIFI_FEATURE_MKEEP_ALIVE;
#endif /* KEEP_ALIVE */
#ifdef FILTER_IE
    if (FW_SUPPORTED(dhd, fie)) {
        feature_set |= WIFI_FEATURE_FILTER_IE;
    }
#endif /* FILTER_IE */
#ifdef ROAMEXP_SUPPORT
    /* Check if the roam feature is supported by FW */
    if (!(BCME_UNSUPPORTED == dhd_dev_set_allowlist_ssid(dev, NULL, 0, true))) {
        feature_set |= WIFI_FEATURE_CONTROL_ROAMING;
    }
#endif /* ROAMEXP_SUPPORT */
    return feature_set;
}

int dhd_dev_get_feature_set_matrix(struct net_device *dev, int num)
{
    int feature_set_full;
    int ret = 0;

    feature_set_full = dhd_dev_get_feature_set(dev);

    /* Common feature set for all interface */
    ret = (feature_set_full & WIFI_FEATURE_INFRA) |
          (feature_set_full & WIFI_FEATURE_INFRA_5G) |
          (feature_set_full & WIFI_FEATURE_D2D_RTT) |
          (feature_set_full & WIFI_FEATURE_D2AP_RTT) |
          (feature_set_full & WIFI_FEATURE_RSSI_MONITOR) |
          (feature_set_full & WIFI_FEATURE_EPR);

    /* Specific feature group for each interface */
    switch (num) {
        case 0:
            ret |= (feature_set_full & WIFI_FEATURE_P2P) |
                   /* Not supported yet */
                   /* (feature_set_full & WIFI_FEATURE_NAN) | */
                   (feature_set_full & WIFI_FEATURE_TDLS) |
                   (feature_set_full & WIFI_FEATURE_PNO) |
                   (feature_set_full & WIFI_FEATURE_HAL_EPNO) |
                   (feature_set_full & WIFI_FEATURE_BATCH_SCAN) |
                   (feature_set_full & WIFI_FEATURE_GSCAN) |
                   (feature_set_full & WIFI_FEATURE_HOTSPOT) |
                   (feature_set_full & WIFI_FEATURE_ADDITIONAL_STA);
            break;

        case 1:
            ret |= (feature_set_full & WIFI_FEATURE_P2P);
            /* Not yet verified NAN with P2P */
            /* (feature_set_full & WIFI_FEATURE_NAN) | */
            break;

        case 0x2:
            ret |= (feature_set_full & WIFI_FEATURE_NAN) |
                   (feature_set_full & WIFI_FEATURE_TDLS) |
                   (feature_set_full & WIFI_FEATURE_TDLS_OFFCHANNEL);
            break;

        default:
            ret = WIFI_FEATURE_INVALID;
            DHD_ERROR(("%s: Out of index(%d) for get feature set\n",
                       __FUNCTION__, num));
            break;
    }

    return ret;
}

#ifdef CUSTOM_FORCE_NODFS_FLAG
int dhd_dev_set_nodfs(struct net_device *dev, u32 nodfs)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);

    if (nodfs) {
        dhd->pub.dhd_cflags |= WLAN_PLAT_NODFS_FLAG;
    } else {
        dhd->pub.dhd_cflags &= ~WLAN_PLAT_NODFS_FLAG;
    }
    dhd->pub.force_country_change = TRUE;
    return 0;
}
#endif /* CUSTOM_FORCE_NODFS_FLAG */

#ifdef NDO_CONFIG_SUPPORT
int dhd_dev_ndo_cfg(struct net_device *dev, u8 enable)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    dhd_pub_t *dhdp = &dhd->pub;
    int ret = 0;

    if (enable) {
        /* enable ND offload feature (will be enabled in FW on suspend) */
        dhdp->ndo_enable = TRUE;

        /* Update changes of anycast address & DAD failed address */
        ret = dhd_dev_ndo_update_inet6addr(dev);
        if ((ret < 0) && (ret != BCME_NORESOURCE)) {
            DHD_ERROR(
                ("%s: failed to update host ip addr: %d\n", __FUNCTION__, ret));
            return ret;
        }
    } else {
        /* disable ND offload feature */
        dhdp->ndo_enable = FALSE;

        /* disable ND offload in FW */
        ret = dhd_ndo_enable(dhdp, FALSE);
        if (ret < 0) {
            DHD_ERROR(("%s: failed to disable NDO: %d\n", __FUNCTION__, ret));
        }
    }
    return ret;
}

/* #pragma used as a WAR to fix build failure,
 * ignore dropping of 'const' qualifier in 'list_entry' macro
 * this pragma disables the warning only for the following function
 */
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"

static int dhd_dev_ndo_get_valid_inet6addr_count(struct inet6_dev *inet6)
{
    struct inet6_ifaddr *ifa;
    struct ifacaddr6 *acaddr = NULL;
    int addr_count = 0;

    /* lock */
    read_lock_bh(&inet6->lock);

    /* Count valid unicast address */
    list_for_each_entry(ifa, &inet6->addr_list, if_list)
    {
        if ((ifa->flags & IFA_F_DADFAILED) == 0) {
            addr_count++;
        }
    }

    /* Count anycast address */
    acaddr = inet6->ac_list;
    while (acaddr) {
        addr_count++;
        acaddr = acaddr->aca_next;
    }

    /* unlock */
    read_unlock_bh(&inet6->lock);

    return addr_count;
}

int dhd_dev_ndo_update_inet6addr(struct net_device *dev)
{
    dhd_info_t *dhd;
    dhd_pub_t *dhdp;
    struct inet6_dev *inet6;
    struct inet6_ifaddr *ifa;
    struct ifacaddr6 *acaddr = NULL;
    struct in6_addr *ipv6_addr = NULL;
    int cnt, i;
    int ret = BCME_OK;

    /*
     * this function evaulates host ip address in struct inet6_dev
     * unicast addr in inet6_dev->addr_list
     * anycast addr in inet6_dev->ac_list
     * while evaluating inet6_dev, read_lock_bh() is required to prevent
     * access on null(freed) pointer.
     */

    if (dev) {
        inet6 = dev->ip6_ptr;
        if (!inet6) {
            DHD_ERROR(("%s: Invalid inet6_dev\n", __FUNCTION__));
            return BCME_ERROR;
        }

        dhd = DHD_DEV_INFO(dev);
        if (!dhd) {
            DHD_ERROR(("%s: Invalid dhd_info\n", __FUNCTION__));
            return BCME_ERROR;
        }
        dhdp = &dhd->pub;

        if (dhd_net2idx(dhd, dev) != 0) {
            DHD_ERROR(("%s: Not primary interface\n", __FUNCTION__));
            return BCME_ERROR;
        }
    } else {
        DHD_ERROR(("%s: Invalid net_device\n", __FUNCTION__));
        return BCME_ERROR;
    }

    /* Check host IP overflow */
    cnt = dhd_dev_ndo_get_valid_inet6addr_count(inet6);
    if (cnt > dhdp->ndo_max_host_ip) {
        if (!dhdp->ndo_host_ip_overflow) {
            dhdp->ndo_host_ip_overflow = TRUE;
            /* Disable ND offload in FW */
            DHD_INFO(("%s: Host IP overflow, disable NDO\n", __FUNCTION__));
            ret = dhd_ndo_enable(dhdp, FALSE);
        }

        return ret;
    }

    /*
     * Allocate ipv6 addr buffer to store addresses to be added/removed.
     * driver need to lock inet6_dev while accessing structure. but, driver
     * cannot use ioctl while inet6_dev locked since it requires scheduling
     * hence, copy addresses to the buffer and do ioctl after unlock.
     */
    ipv6_addr = (struct in6_addr *)MALLOC(dhdp->osh, sizeof(struct in6_addr) *
                                                         dhdp->ndo_max_host_ip);
    if (!ipv6_addr) {
        DHD_ERROR(("%s: failed to alloc ipv6 addr buffer\n", __FUNCTION__));
        return BCME_NOMEM;
    }

    /* Find DAD failed unicast address to be removed */
    cnt = 0;
    read_lock_bh(&inet6->lock);
    list_for_each_entry(ifa, &inet6->addr_list, if_list)
    {
        /* DAD failed unicast address */
        if ((ifa->flags & IFA_F_DADFAILED) && (cnt < dhdp->ndo_max_host_ip)) {
            memcpy(&ipv6_addr[cnt], &ifa->addr, sizeof(struct in6_addr));
            cnt++;
        }
    }
    read_unlock_bh(&inet6->lock);

    /* Remove DAD failed unicast address */
    for (i = 0; i < cnt; i++) {
        DHD_INFO(("%s: Remove DAD failed addr\n", __FUNCTION__));
        ret = dhd_ndo_remove_ip_by_addr(dhdp, (char *)&ipv6_addr[i], 0);
        if (ret < 0) {
            goto done;
        }
    }

    /* Remove all anycast address */
    ret = dhd_ndo_remove_ip_by_type(dhdp, WL_ND_IPV6_ADDR_TYPE_ANYCAST, 0);
    if (ret < 0) {
        goto done;
    }

    /*
     * if ND offload was disabled due to host ip overflow,
     * attempt to add valid unicast address.
     */
    if (dhdp->ndo_host_ip_overflow) {
        /* Find valid unicast address */
        cnt = 0;
        read_lock_bh(&inet6->lock);
        list_for_each_entry(ifa, &inet6->addr_list, if_list)
        {
            /* valid unicast address */
            if (!(ifa->flags & IFA_F_DADFAILED) &&
                (cnt < dhdp->ndo_max_host_ip)) {
                memcpy(&ipv6_addr[cnt], &ifa->addr, sizeof(struct in6_addr));
                cnt++;
            }
        }
        read_unlock_bh(&inet6->lock);

        /* Add valid unicast address */
        for (i = 0; i < cnt; i++) {
            ret = dhd_ndo_add_ip_with_type(dhdp, (char *)&ipv6_addr[i],
                                           WL_ND_IPV6_ADDR_TYPE_UNICAST, 0);
            if (ret < 0) {
                goto done;
            }
        }
    }

    /* Find anycast address */
    cnt = 0;
    read_lock_bh(&inet6->lock);
    acaddr = inet6->ac_list;
    while (acaddr) {
        if (cnt < dhdp->ndo_max_host_ip) {
            memcpy(&ipv6_addr[cnt], &acaddr->aca_addr, sizeof(struct in6_addr));
            cnt++;
        }
        acaddr = acaddr->aca_next;
    }
    read_unlock_bh(&inet6->lock);

    /* Add anycast address */
    for (i = 0; i < cnt; i++) {
        ret = dhd_ndo_add_ip_with_type(dhdp, (char *)&ipv6_addr[i],
                                       WL_ND_IPV6_ADDR_TYPE_ANYCAST, 0);
        if (ret < 0) {
            goto done;
        }
    }

    /* Now All host IP addr were added successfully */
    if (dhdp->ndo_host_ip_overflow) {
        dhdp->ndo_host_ip_overflow = FALSE;
        if (dhdp->in_suspend) {
            /* drvier is in (early) suspend state, need to enable ND offload in
             * FW */
            DHD_INFO(("%s: enable NDO\n", __FUNCTION__));
            ret = dhd_ndo_enable(dhdp, TRUE);
        }
    }

done:
    if (ipv6_addr) {
        MFREE(dhdp->osh, ipv6_addr,
              sizeof(struct in6_addr) * dhdp->ndo_max_host_ip);
    }

    return ret;
}
#pragma GCC diagnostic pop

#endif /* NDO_CONFIG_SUPPORT */

#ifdef PNO_SUPPORT
/* Linux wrapper to call common dhd_pno_stop_for_ssid */
int dhd_dev_pno_stop_for_ssid(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);

    return (dhd_pno_stop_for_ssid(&dhd->pub));
}

/* Linux wrapper to call common dhd_pno_set_for_ssid */
int dhd_dev_pno_set_for_ssid(struct net_device *dev,
                             wlc_ssid_ext_t *ssids_local, int nssid,
                             uint16 scan_fr, int pno_repeat,
                             int pno_freq_expo_max, uint16 *channel_list,
                             int nchan)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);

    return (dhd_pno_set_for_ssid(&dhd->pub, ssids_local, nssid, scan_fr,
                                 pno_repeat, pno_freq_expo_max, channel_list,
                                 nchan));
}

/* Linux wrapper to call common dhd_pno_enable */
int dhd_dev_pno_enable(struct net_device *dev, int enable)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);

    return (dhd_pno_enable(&dhd->pub, enable));
}

/* Linux wrapper to call common dhd_pno_set_for_hotlist */
int dhd_dev_pno_set_for_hotlist(struct net_device *dev,
                                wl_pfn_bssid_t *p_pfn_bssid,
                                struct dhd_pno_hotlist_params *hotlist_params)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    return (dhd_pno_set_for_hotlist(&dhd->pub, p_pfn_bssid, hotlist_params));
}
/* Linux wrapper to call common dhd_dev_pno_stop_for_batch */
int dhd_dev_pno_stop_for_batch(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    return (dhd_pno_stop_for_batch(&dhd->pub));
}

/* Linux wrapper to call common dhd_dev_pno_set_for_batch */
int dhd_dev_pno_set_for_batch(struct net_device *dev,
                              struct dhd_pno_batch_params *batch_params)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    return (dhd_pno_set_for_batch(&dhd->pub, batch_params));
}

/* Linux wrapper to call common dhd_dev_pno_get_for_batch */
int dhd_dev_pno_get_for_batch(struct net_device *dev, char *buf, int bufsize)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    return (dhd_pno_get_for_batch(&dhd->pub, buf, bufsize, PNO_STATUS_NORMAL));
}
#endif /* PNO_SUPPORT */

#if defined(PNO_SUPPORT)
#ifdef GSCAN_SUPPORT
bool dhd_dev_is_legacy_pno_enabled(struct net_device *dev)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_is_legacy_pno_enabled(&dhd->pub));
}

int dhd_dev_set_epno(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    if (!dhd) {
        return BCME_ERROR;
    }
    return dhd_pno_set_epno(&dhd->pub);
}
int dhd_dev_flush_fw_epno(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    if (!dhd) {
        return BCME_ERROR;
    }
    return dhd_pno_flush_fw_epno(&dhd->pub);
}

/* Linux wrapper to call common dhd_pno_set_cfg_gscan */
int dhd_dev_pno_set_cfg_gscan(struct net_device *dev,
                              dhd_pno_gscan_cmd_cfg_t type, void *buf,
                              bool flush)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_pno_set_cfg_gscan(&dhd->pub, type, buf, flush));
}

/* Linux wrapper to call common dhd_wait_batch_results_complete */
int dhd_dev_wait_batch_results_complete(struct net_device *dev)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_wait_batch_results_complete(&dhd->pub));
}

/* Linux wrapper to call common dhd_pno_lock_batch_results */
int dhd_dev_pno_lock_access_batch_results(struct net_device *dev)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_pno_lock_batch_results(&dhd->pub));
}
/* Linux wrapper to call common dhd_pno_unlock_batch_results */
void dhd_dev_pno_unlock_access_batch_results(struct net_device *dev)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_pno_unlock_batch_results(&dhd->pub));
}

/* Linux wrapper to call common dhd_pno_initiate_gscan_request */
int dhd_dev_pno_run_gscan(struct net_device *dev, bool run, bool flush)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_pno_initiate_gscan_request(&dhd->pub, run, flush));
}

/* Linux wrapper to call common dhd_pno_enable_full_scan_result */
int dhd_dev_pno_enable_full_scan_result(struct net_device *dev,
                                        bool real_time_flag)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_pno_enable_full_scan_result(&dhd->pub, real_time_flag));
}

/* Linux wrapper to call common dhd_handle_hotlist_scan_evt */
void *dhd_dev_hotlist_scan_event(struct net_device *dev, const void *data,
                                 int *send_evt_bytes, hotlist_type_t type,
                                 u32 *buf_len)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_handle_hotlist_scan_evt(&dhd->pub, data, send_evt_bytes, type,
                                        buf_len));
}

/* Linux wrapper to call common dhd_process_full_gscan_result */
void *dhd_dev_process_full_gscan_result(struct net_device *dev,
                                        const void *data, uint32 len,
                                        int *send_evt_bytes)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (
        dhd_process_full_gscan_result(&dhd->pub, data, len, send_evt_bytes));
}

void dhd_dev_gscan_hotlist_cache_cleanup(struct net_device *dev,
                                         hotlist_type_t type)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    dhd_gscan_hotlist_cache_cleanup(&dhd->pub, type);

    return;
}

int dhd_dev_gscan_batch_cache_cleanup(struct net_device *dev)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_gscan_batch_cache_cleanup(&dhd->pub));
}

/* Linux wrapper to call common dhd_retreive_batch_scan_results */
int dhd_dev_retrieve_batch_scan(struct net_device *dev)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_retreive_batch_scan_results(&dhd->pub));
}

/* Linux wrapper to call common dhd_pno_process_epno_result */
void *dhd_dev_process_epno_result(struct net_device *dev, const void *data,
                                  uint32 event, int *send_evt_bytes)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (
        dhd_pno_process_epno_result(&dhd->pub, data, event, send_evt_bytes));
}

int dhd_dev_set_lazy_roam_cfg(struct net_device *dev,
                              wlc_roam_exp_params_t *roam_param)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    wl_roam_exp_cfg_t roam_exp_cfg;
    int err;

    if (!roam_param) {
        return BCME_BADARG;
    }

    DHD_INFO(("a_band_boost_thr %d a_band_penalty_thr %d\n",
              roam_param->a_band_boost_threshold,
              roam_param->a_band_penalty_threshold));
    DHD_INFO(
        ("a_band_boost_factor %d a_band_penalty_factor %d cur_bssid_boost %d\n",
         roam_param->a_band_boost_factor, roam_param->a_band_penalty_factor,
         roam_param->cur_bssid_boost));
    DHD_INFO(("alert_roam_trigger_thr %d a_band_max_boost %d\n",
              roam_param->alert_roam_trigger_threshold,
              roam_param->a_band_max_boost));

    memcpy(&roam_exp_cfg.params, roam_param, sizeof(*roam_param));
    roam_exp_cfg.version = ROAM_EXP_CFG_VERSION;
    roam_exp_cfg.flags = ROAM_EXP_CFG_PRESENT;
    if (dhd->pub.lazy_roam_enable) {
        roam_exp_cfg.flags |= ROAM_EXP_ENABLE_FLAG;
    }
    err = dhd_iovar(&dhd->pub, 0, "roam_exp_params", (char *)&roam_exp_cfg,
                    sizeof(roam_exp_cfg), NULL, 0, TRUE);
    if (err < 0) {
        DHD_ERROR(
            ("%s : Failed to execute roam_exp_params %d\n", __FUNCTION__, err));
    }
    return err;
}

int dhd_dev_lazy_roam_enable(struct net_device *dev, uint32 enable)
{
    int err;
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    wl_roam_exp_cfg_t roam_exp_cfg;

    memset(&roam_exp_cfg, 0, sizeof(roam_exp_cfg));
    roam_exp_cfg.version = ROAM_EXP_CFG_VERSION;
    if (enable) {
        roam_exp_cfg.flags = ROAM_EXP_ENABLE_FLAG;
    }

    err = dhd_iovar(&dhd->pub, 0, "roam_exp_params", (char *)&roam_exp_cfg,
                    sizeof(roam_exp_cfg), NULL, 0, TRUE);
    if (err < 0) {
        DHD_ERROR(
            ("%s : Failed to execute roam_exp_params %d\n", __FUNCTION__, err));
    } else {
        dhd->pub.lazy_roam_enable = (enable != 0);
    }
    return err;
}

int dhd_dev_set_lazy_roam_bssid_pref(struct net_device *dev,
                                     wl_bssid_pref_cfg_t *bssid_pref,
                                     uint32 flush)
{
    int err;
    uint len;
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif

    bssid_pref->version = BSSID_PREF_LIST_VERSION;
    /* By default programming bssid pref flushes out old values */
    bssid_pref->flags =
        (flush && !bssid_pref->count) ? ROAM_EXP_CLEAR_BSSID_PREF : 0;
    len = sizeof(wl_bssid_pref_cfg_t);
    if (bssid_pref->count) {
        len += (bssid_pref->count - 1) * sizeof(wl_bssid_pref_list_t);
    }
    err = dhd_iovar(&dhd->pub, 0, "roam_exp_bssid_pref", (char *)bssid_pref,
                    len, NULL, 0, TRUE);
    if (err != BCME_OK) {
        DHD_ERROR(("%s : Failed to execute roam_exp_bssid_pref %d\n",
                   __FUNCTION__, err));
    }
    return err;
}
#endif /* GSCAN_SUPPORT */

#if defined(GSCAN_SUPPORT) || defined(ROAMEXP_SUPPORT)
int dhd_dev_set_denylist_bssid(struct net_device *dev, maclist_t *denylist,
                                uint32 len, uint32 flush)
{
    int err;
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    int macmode;

    if (denylist) {
        err = dhd_wl_ioctl_cmd(&(dhd->pub), WLC_SET_MACLIST, (char *)denylist,
                               len, TRUE, 0);
        if (err != BCME_OK) {
            DHD_ERROR(("%s : WLC_SET_MACLIST failed %d\n", __FUNCTION__, err));
            return err;
        }
    }
    /* By default programming denylist flushes out old values */
    macmode = (flush && !denylist) ? WLC_MACMODE_DISABLED : WLC_MACMODE_DENY;
    err = dhd_wl_ioctl_cmd(&(dhd->pub), WLC_SET_MACMODE, (char *)&macmode,
                           sizeof(macmode), TRUE, 0);
    if (err != BCME_OK) {
        DHD_ERROR(("%s : WLC_SET_MACMODE failed %d\n", __FUNCTION__, err));
    }
    return err;
}

int dhd_dev_set_allowlist_ssid(struct net_device *dev,
                               wl_ssid_allowlist_t *ssid_allowlist, uint32 len,
                               uint32 flush)
{
    int err;
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    wl_ssid_allowlist_t allowlist_ssid_flush;

    if (!ssid_allowlist) {
        if (flush) {
            ssid_allowlist = &allowlist_ssid_flush;
            ssid_allowlist->ssid_count = 0;
        } else {
            DHD_ERROR(("%s : Nothing to do here\n", __FUNCTION__));
            return BCME_BADARG;
        }
    }
    ssid_allowlist->version = SSID_ALLOWLIST_VERSION;
    ssid_allowlist->flags = flush ? ROAM_EXP_CLEAR_SSID_ALLOWLIST : 0;
    err = dhd_iovar(&dhd->pub, 0, "roam_exp_ssid_allowlist",
                    (char *)ssid_allowlist, len, NULL, 0, TRUE);
    if (err != BCME_OK) {
        DHD_ERROR(("%s : Failed to execute roam_exp_bssid_pref %d\n",
                   __FUNCTION__, err));
    }
    return err;
}
#endif /* GSCAN_SUPPORT || ROAMEXP_SUPPORT */

#if defined(GSCAN_SUPPORT) || defined(DHD_GET_VALID_CHANNELS)
/* Linux wrapper to call common dhd_pno_get_gscan */
void *dhd_dev_pno_get_gscan(struct net_device *dev,
                            dhd_pno_gscan_cmd_cfg_t type, void *info,
                            uint32 *len)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_pno_get_gscan(&dhd->pub, type, info, len));
}
#endif /* GSCAN_SUPPORT || DHD_GET_VALID_CHANNELS */
#endif // endif

#ifdef RSSI_MONITOR_SUPPORT
int dhd_dev_set_rssi_monitor_cfg(struct net_device *dev, int start,
                                 int8 max_rssi, int8 min_rssi)
{
    int err;
    wl_rssi_monitor_cfg_t rssi_monitor;
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    rssi_monitor.version = RSSI_MONITOR_VERSION;
    rssi_monitor.max_rssi = max_rssi;
    rssi_monitor.min_rssi = min_rssi;
    rssi_monitor.flags = start ? 0 : RSSI_MONITOR_STOP;
    err = dhd_iovar(&dhd->pub, 0, "rssi_monitor", (char *)&rssi_monitor,
                    sizeof(rssi_monitor), NULL, 0, TRUE);
    if (err < 0 && err != BCME_UNSUPPORTED) {
        DHD_ERROR(
            ("%s : Failed to execute rssi_monitor %d\n", __FUNCTION__, err));
    }
    return err;
}
#endif /* RSSI_MONITOR_SUPPORT */

#ifdef DHDTCPACK_SUPPRESS
int dhd_dev_set_tcpack_sup_mode_cfg(struct net_device *dev, uint8 enable)
{
    int err;
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    err = dhd_tcpack_suppress_set(&dhd->pub, enable);
    if (err != BCME_OK) {
        DHD_ERROR(("%s : Failed to set tcpack_suppress mode: %d\n",
                   __FUNCTION__, err));
    }
    return err;
}
#endif /* DHDTCPACK_SUPPRESS */

int dhd_dev_cfg_rand_mac_oui(struct net_device *dev, uint8 *oui)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    dhd_pub_t *dhdp = &dhd->pub;

    if (!dhdp || !oui) {
        DHD_ERROR(("NULL POINTER : %s\n", __FUNCTION__));
        return BCME_ERROR;
    }
    if (ETHER_ISMULTI(oui)) {
        DHD_ERROR(("Expected unicast OUI\n"));
        return BCME_ERROR;
    } else {
        uint8 *rand_mac_oui = dhdp->rand_mac_oui;
        memcpy(rand_mac_oui, oui, DOT11_OUI_LEN);
        DHD_ERROR(("Random MAC OUI to be used - " MACOUIDBG "\n",
                   MACOUI2STRDBG(rand_mac_oui)));
    }
    return BCME_OK;
}

int dhd_set_rand_mac_oui(dhd_pub_t *dhd)
{
    int err;
    wl_pfn_macaddr_cfg_t wl_cfg;
    uint8 *rand_mac_oui = dhd->rand_mac_oui;

    memset(&wl_cfg.macaddr, 0, ETHER_ADDR_LEN);
    memcpy(&wl_cfg.macaddr, rand_mac_oui, DOT11_OUI_LEN);
    wl_cfg.version = WL_PFN_MACADDR_CFG_VER;
    if (ETHER_ISNULLADDR(&wl_cfg.macaddr)) {
        wl_cfg.flags = 0;
    } else {
        wl_cfg.flags = (WL_PFN_MAC_OUI_ONLY_MASK | WL_PFN_SET_MAC_UNASSOC_MASK);
    }

    DHD_ERROR(("Setting rand mac oui to FW - " MACOUIDBG "\n",
               MACOUI2STRDBG(rand_mac_oui)));

    err = dhd_iovar(dhd, 0, "pfn_macaddr", (char *)&wl_cfg, sizeof(wl_cfg),
                    NULL, 0, TRUE);
    if (err < 0) {
        DHD_ERROR(
            ("%s : failed to execute pfn_macaddr %d\n", __FUNCTION__, err));
    }
    return err;
}

#if defined(RTT_SUPPORT) && defined(WL_CFG80211)
/* Linux wrapper to call common dhd_pno_set_cfg_gscan */
int dhd_dev_rtt_set_cfg(struct net_device *dev, void *buf)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_rtt_set_cfg(&dhd->pub, buf));
}

int dhd_dev_rtt_cancel_cfg(struct net_device *dev, struct ether_addr *mac_list,
                           int mac_cnt)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_rtt_stop(&dhd->pub, mac_list, mac_cnt));
}

int dhd_dev_rtt_register_noti_callback(struct net_device *dev, void *ctx,
                                       dhd_rtt_compl_noti_fn noti_fn)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_rtt_register_noti_callback(&dhd->pub, ctx, noti_fn));
}

int dhd_dev_rtt_unregister_noti_callback(struct net_device *dev,
                                         dhd_rtt_compl_noti_fn noti_fn)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_rtt_unregister_noti_callback(&dhd->pub, noti_fn));
}

int dhd_dev_rtt_capability(struct net_device *dev, rtt_capabilities_t *capa)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_rtt_capability(&dhd->pub, capa));
}

int dhd_dev_rtt_avail_channel(struct net_device *dev,
                              wifi_channel_info *channel_info)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_rtt_avail_channel(&dhd->pub, channel_info));
}

int dhd_dev_rtt_enable_responder(struct net_device *dev,
                                 wifi_channel_info *channel_info)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_rtt_enable_responder(&dhd->pub, channel_info));
}

int dhd_dev_rtt_cancel_responder(struct net_device *dev)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    return (dhd_rtt_cancel_responder(&dhd->pub));
}

#endif /* RTT_SUPPORT */

#ifdef KEEP_ALIVE
#define KA_TEMP_BUF_SIZE 512
#define KA_FRAME_SIZE 300

int dhd_dev_start_mkeep_alive(dhd_pub_t *dhd_pub, uint8 mkeep_alive_id,
                              uint8 *ip_pkt, uint16 ip_pkt_len, uint8 *src_mac,
                              uint8 *dst_mac, uint32 period_msec)
{
    const int ETHERTYPE_LEN = 2;
    char *pbuf = NULL;
    const char *str;
    wl_mkeep_alive_pkt_t mkeep_alive_pkt;
    wl_mkeep_alive_pkt_t *mkeep_alive_pktp = NULL;
    int buf_len = 0;
    int str_len = 0;
    int res = BCME_ERROR;
    int len_bytes = 0;
    int i = 0;

    /* ether frame to have both max IP pkt (256 bytes) and ether header */
    char *pmac_frame = NULL;
    char *pmac_frame_begin = NULL;

    /*
     * The mkeep_alive packet is for STA interface only; if the bss is
     * configured as AP, dongle shall reject a mkeep_alive request.
     */
    if (!dhd_support_sta_mode(dhd_pub)) {
        return res;
    }

    DHD_TRACE(("%s execution\n", __FUNCTION__));

    if ((pbuf = MALLOCZ(dhd_pub->osh, KA_TEMP_BUF_SIZE)) == NULL) {
        DHD_ERROR(("failed to allocate buf with size %d\n", KA_TEMP_BUF_SIZE));
        res = BCME_NOMEM;
        return res;
    }

    if ((pmac_frame = MALLOCZ(dhd_pub->osh, KA_FRAME_SIZE)) == NULL) {
        DHD_ERROR(
            ("failed to allocate mac_frame with size %d\n", KA_FRAME_SIZE));
        res = BCME_NOMEM;
        goto exit;
    }
    pmac_frame_begin = pmac_frame;

    /*
     * Get current mkeep-alive status.
     */
    res = dhd_iovar(dhd_pub, 0, "mkeep_alive", &mkeep_alive_id,
                    sizeof(mkeep_alive_id), pbuf, KA_TEMP_BUF_SIZE, FALSE);
    if (res < 0) {
        DHD_ERROR(
            ("%s: Get mkeep_alive failed (error=%d)\n", __FUNCTION__, res));
        goto exit;
    } else {
        /* Check available ID whether it is occupied */
        mkeep_alive_pktp = (wl_mkeep_alive_pkt_t *)pbuf;
        if (dtoh32(mkeep_alive_pktp->period_msec != 0)) {
            DHD_ERROR(("%s: Get mkeep_alive failed, ID %u is in use.\n",
                       __FUNCTION__, mkeep_alive_id));

            /* Current occupied ID info */
            DHD_ERROR(("%s: mkeep_alive\n", __FUNCTION__));
            DHD_ERROR(("   Id    : %d\n"
                       "   Period: %d msec\n"
                       "   Length: %d\n"
                       "   Packet: 0x",
                       mkeep_alive_pktp->keep_alive_id,
                       dtoh32(mkeep_alive_pktp->period_msec),
                       dtoh16(mkeep_alive_pktp->len_bytes)));

            for (i = 0; i < mkeep_alive_pktp->len_bytes; i++) {
                DHD_ERROR(("%02x", mkeep_alive_pktp->data[i]));
            }
            DHD_ERROR(("\n"));

            res = BCME_NOTFOUND;
            goto exit;
        }
    }

    /* Request the specified ID */
    memset(&mkeep_alive_pkt, 0, sizeof(wl_mkeep_alive_pkt_t));
    memset(pbuf, 0, KA_TEMP_BUF_SIZE);
    str = "mkeep_alive";
    str_len = strlen(str);
    strncpy(pbuf, str, str_len);
    pbuf[str_len] = '\0';

    mkeep_alive_pktp = (wl_mkeep_alive_pkt_t *)(pbuf + str_len + 1);
    mkeep_alive_pkt.period_msec = htod32(period_msec);
    buf_len = str_len + 1;
    mkeep_alive_pkt.version = htod16(WL_MKEEP_ALIVE_VERSION);
    mkeep_alive_pkt.length = htod16(WL_MKEEP_ALIVE_FIXED_LEN);

    /* ID assigned */
    mkeep_alive_pkt.keep_alive_id = mkeep_alive_id;

    buf_len += WL_MKEEP_ALIVE_FIXED_LEN;

    /*
     * Build up Ethernet Frame
     */

    /* Mapping dest mac addr */
    memcpy(pmac_frame, dst_mac, ETHER_ADDR_LEN);
    pmac_frame += ETHER_ADDR_LEN;

    /* Mapping src mac addr */
    memcpy(pmac_frame, src_mac, ETHER_ADDR_LEN);
    pmac_frame += ETHER_ADDR_LEN;

    /* Mapping Ethernet type (ETHERTYPE_IP: 0x0800) */
    *(pmac_frame++) = 0x08;
    *(pmac_frame++) = 0x00;

    /* Mapping IP pkt */
    memcpy(pmac_frame, ip_pkt, ip_pkt_len);
    pmac_frame += ip_pkt_len;

    /*
     * Length of ether frame (assume to be all hexa bytes)
     *     = src mac + dst mac + ether type + ip pkt len
     */
    len_bytes = ETHER_ADDR_LEN * 0x2 + ETHERTYPE_LEN + ip_pkt_len;
    memcpy(mkeep_alive_pktp->data, pmac_frame_begin, len_bytes);
    buf_len += len_bytes;
    mkeep_alive_pkt.len_bytes = htod16(len_bytes);

    /*
     * Keep-alive attributes are set in local variable (mkeep_alive_pkt), and
     * then memcpy'ed into buffer (mkeep_alive_pktp) since there is no
     * guarantee that the buffer is properly aligned.
     */
    memcpy((char *)mkeep_alive_pktp, &mkeep_alive_pkt,
           WL_MKEEP_ALIVE_FIXED_LEN);

    res = dhd_wl_ioctl_cmd(dhd_pub, WLC_SET_VAR, pbuf, buf_len, TRUE, 0);
exit:
    if (pmac_frame_begin) {
        MFREE(dhd_pub->osh, pmac_frame_begin, KA_FRAME_SIZE);
        pmac_frame_begin = NULL;
    }
    if (pbuf) {
        MFREE(dhd_pub->osh, pbuf, KA_TEMP_BUF_SIZE);
        pbuf = NULL;
    }
    return res;
}

int dhd_dev_stop_mkeep_alive(dhd_pub_t *dhd_pub, uint8 mkeep_alive_id)
{
    char *pbuf = NULL;
    wl_mkeep_alive_pkt_t mkeep_alive_pkt;
    wl_mkeep_alive_pkt_t *mkeep_alive_pktp = NULL;
    int res = BCME_ERROR;
    int i = 0;

    /*
     * The mkeep_alive packet is for STA interface only; if the bss is
     * configured as AP, dongle shall reject a mkeep_alive request.
     */
    if (!dhd_support_sta_mode(dhd_pub)) {
        return res;
    }

    DHD_TRACE(("%s execution\n", __FUNCTION__));

    /*
     * Get current mkeep-alive status. Skip ID 0 which is being used for NULL
     * pkt.
     */
    if ((pbuf = MALLOC(dhd_pub->osh, KA_TEMP_BUF_SIZE)) == NULL) {
        DHD_ERROR(("failed to allocate buf with size %d\n", KA_TEMP_BUF_SIZE));
        return res;
    }

    res = dhd_iovar(dhd_pub, 0, "mkeep_alive", &mkeep_alive_id,
                    sizeof(mkeep_alive_id), pbuf, KA_TEMP_BUF_SIZE, FALSE);
    if (res < 0) {
        DHD_ERROR(
            ("%s: Get mkeep_alive failed (error=%d)\n", __FUNCTION__, res));
        goto exit;
    } else {
        /* Check occupied ID */
        mkeep_alive_pktp = (wl_mkeep_alive_pkt_t *)pbuf;
        DHD_INFO(("%s: mkeep_alive\n", __FUNCTION__));
        DHD_INFO(("   Id    : %d\n"
                  "   Period: %d msec\n"
                  "   Length: %d\n"
                  "   Packet: 0x",
                  mkeep_alive_pktp->keep_alive_id,
                  dtoh32(mkeep_alive_pktp->period_msec),
                  dtoh16(mkeep_alive_pktp->len_bytes)));

        for (i = 0; i < mkeep_alive_pktp->len_bytes; i++) {
            DHD_INFO(("%02x", mkeep_alive_pktp->data[i]));
        }
        DHD_INFO(("\n"));
    }

    /* Make it stop if available */
    if (dtoh32(mkeep_alive_pktp->period_msec != 0)) {
        DHD_INFO(("stop mkeep_alive on ID %d\n", mkeep_alive_id));
        memset(&mkeep_alive_pkt, 0, sizeof(wl_mkeep_alive_pkt_t));

        mkeep_alive_pkt.period_msec = 0;
        mkeep_alive_pkt.version = htod16(WL_MKEEP_ALIVE_VERSION);
        mkeep_alive_pkt.length = htod16(WL_MKEEP_ALIVE_FIXED_LEN);
        mkeep_alive_pkt.keep_alive_id = mkeep_alive_id;

        res = dhd_iovar(dhd_pub, 0, "mkeep_alive", (char *)&mkeep_alive_pkt,
                        WL_MKEEP_ALIVE_FIXED_LEN, NULL, 0, TRUE);
    } else {
        DHD_ERROR(
            ("%s: ID %u does not exist.\n", __FUNCTION__, mkeep_alive_id));
        res = BCME_NOTFOUND;
    }
exit:
    if (pbuf) {
        MFREE(dhd_pub->osh, pbuf, KA_TEMP_BUF_SIZE);
        pbuf = NULL;
    }
    return res;
}
#endif /* KEEP_ALIVE */

#if defined(PKT_FILTER_SUPPORT) && defined(APF)
static void _dhd_apf_lock_local(dhd_info_t *dhd)
{
    if (dhd) {
        mutex_lock(&dhd->dhd_apf_mutex);
    }
}

static void _dhd_apf_unlock_local(dhd_info_t *dhd)
{
    if (dhd) {
        mutex_unlock(&dhd->dhd_apf_mutex);
    }
}

static int __dhd_apf_add_filter(struct net_device *ndev, uint32 filter_id,
                                u8 *program, uint32 program_len)
{
    dhd_info_t *dhd = DHD_DEV_INFO(ndev);
    dhd_pub_t *dhdp = &dhd->pub;
    wl_pkt_filter_t *pkt_filterp;
    wl_apf_program_t *apf_program;
    char *buf;
    u32 cmd_len, buf_len;
    int ifidx, ret;
    char cmd[] = "pkt_filter_add";

    ifidx = dhd_net2idx(dhd, ndev);
    if (ifidx == DHD_BAD_IF) {
        DHD_ERROR(("%s: bad ifidx\n", __FUNCTION__));
        return -ENODEV;
    }

    cmd_len = sizeof(cmd);

    /* Check if the program_len is more than the expected len
     * and if the program is NULL return from here.
     */
    if ((program_len > WL_APF_PROGRAM_MAX_SIZE) || (program == NULL)) {
        DHD_ERROR(("%s Invalid program_len: %d, program: %pK\n", __FUNCTION__,
                   program_len, program));
        return -EINVAL;
    }
    buf_len = cmd_len + WL_PKT_FILTER_FIXED_LEN + WL_APF_PROGRAM_FIXED_LEN +
              program_len;

    buf = MALLOCZ(dhdp->osh, buf_len);
    if (unlikely(!buf)) {
        DHD_ERROR(("%s: MALLOC failure, %d bytes\n", __FUNCTION__, buf_len));
        return -ENOMEM;
    }

    memcpy(buf, cmd, cmd_len);

    pkt_filterp = (wl_pkt_filter_t *)(buf + cmd_len);
    pkt_filterp->id = htod32(filter_id);
    pkt_filterp->negate_match = htod32(FALSE);
    pkt_filterp->type = htod32(WL_PKT_FILTER_TYPE_APF_MATCH);

    apf_program = &pkt_filterp->u.apf_program;
    apf_program->version = htod16(WL_APF_INTERNAL_VERSION);
    apf_program->instr_len = htod16(program_len);
    memcpy(apf_program->instrs, program, program_len);

    ret = dhd_wl_ioctl_cmd(dhdp, WLC_SET_VAR, buf, buf_len, TRUE, ifidx);
    if (unlikely(ret)) {
        DHD_ERROR(("%s: failed to add APF filter, id=%d, ret=%d\n",
                   __FUNCTION__, filter_id, ret));
    }

    if (buf) {
        MFREE(dhdp->osh, buf, buf_len);
    }
    return ret;
}

static int __dhd_apf_config_filter(struct net_device *ndev, uint32 filter_id,
                                   uint32 mode, uint32 enable)
{
    dhd_info_t *dhd = DHD_DEV_INFO(ndev);
    dhd_pub_t *dhdp = &dhd->pub;
    wl_pkt_filter_enable_t *pkt_filterp;
    char *buf;
    u32 cmd_len, buf_len;
    int ifidx, ret;
    char cmd[] = "pkt_filter_enable";

    ifidx = dhd_net2idx(dhd, ndev);
    if (ifidx == DHD_BAD_IF) {
        DHD_ERROR(("%s: bad ifidx\n", __FUNCTION__));
        return -ENODEV;
    }

    cmd_len = sizeof(cmd);
    buf_len = cmd_len + sizeof(*pkt_filterp);

    buf = MALLOCZ(dhdp->osh, buf_len);
    if (unlikely(!buf)) {
        DHD_ERROR(("%s: MALLOC failure, %d bytes\n", __FUNCTION__, buf_len));
        return -ENOMEM;
    }

    memcpy(buf, cmd, cmd_len);

    pkt_filterp = (wl_pkt_filter_enable_t *)(buf + cmd_len);
    pkt_filterp->id = htod32(filter_id);
    pkt_filterp->enable = htod32(enable);

    ret = dhd_wl_ioctl_cmd(dhdp, WLC_SET_VAR, buf, buf_len, TRUE, ifidx);
    if (unlikely(ret)) {
        DHD_ERROR(("%s: failed to enable APF filter, id=%d, ret=%d\n",
                   __FUNCTION__, filter_id, ret));
        goto exit;
    }

    ret = dhd_wl_ioctl_set_intiovar(dhdp, "pkt_filter_mode", dhd_master_mode,
                                    WLC_SET_VAR, TRUE, ifidx);
    if (unlikely(ret)) {
        DHD_ERROR(("%s: failed to set APF filter mode, id=%d, ret=%d\n",
                   __FUNCTION__, filter_id, ret));
    }

exit:
    if (buf) {
        MFREE(dhdp->osh, buf, buf_len);
    }
    return ret;
}

static int __dhd_apf_delete_filter(struct net_device *ndev, uint32 filter_id)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(ndev);
#else
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(ndev);
#endif
    dhd_pub_t *dhdp = &dhd->pub;
    int ifidx, ret;

    ifidx = dhd_net2idx(dhd, ndev);
    if (ifidx == DHD_BAD_IF) {
        DHD_ERROR(("%s: bad ifidx\n", __FUNCTION__));
        return -ENODEV;
    }

    ret = dhd_wl_ioctl_set_intiovar(
        dhdp, "pkt_filter_delete", htod32(filter_id), WLC_SET_VAR, TRUE, ifidx);
    if (unlikely(ret)) {
        DHD_ERROR(("%s: failed to delete APF filter, id=%d, ret=%d\n",
                   __FUNCTION__, filter_id, ret));
    }

    return ret;
}

void dhd_apf_lock(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    _dhd_apf_lock_local(dhd);
}

void dhd_apf_unlock(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    _dhd_apf_unlock_local(dhd);
}

int dhd_dev_apf_get_version(struct net_device *ndev, uint32 *version)
{
    dhd_info_t *dhd = DHD_DEV_INFO(ndev);
    dhd_pub_t *dhdp = &dhd->pub;
    int ifidx, ret;

    if (!FW_SUPPORTED(dhdp, apf)) {
        DHD_ERROR(("%s: firmware doesn't support APF\n", __FUNCTION__));

        /*
         * Notify framework that APF is not supported by setting
         * version as zero.
         */
        *version = 0;
        return BCME_OK;
    }

    ifidx = dhd_net2idx(dhd, ndev);
    if (ifidx == DHD_BAD_IF) {
        DHD_ERROR(("%s: bad ifidx\n", __FUNCTION__));
        return -ENODEV;
    }

    ret = dhd_wl_ioctl_get_intiovar(dhdp, "apf_ver", version, WLC_GET_VAR,
                                    FALSE, ifidx);
    if (unlikely(ret)) {
        DHD_ERROR(
            ("%s: failed to get APF version, ret=%d\n", __FUNCTION__, ret));
    }

    return ret;
}

int dhd_dev_apf_get_max_len(struct net_device *ndev, uint32 *max_len)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(ndev);
#else
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(ndev);
#endif
    dhd_pub_t *dhdp = &dhd->pub;
    int ifidx, ret;

    if (!FW_SUPPORTED(dhdp, apf)) {
        DHD_ERROR(("%s: firmware doesn't support APF\n", __FUNCTION__));
        *max_len = 0;
        return BCME_OK;
    }

    ifidx = dhd_net2idx(dhd, ndev);
    if (ifidx == DHD_BAD_IF) {
        DHD_ERROR(("%s bad ifidx\n", __FUNCTION__));
        return -ENODEV;
    }

    ret = dhd_wl_ioctl_get_intiovar(dhdp, "apf_size_limit", max_len,
                                    WLC_GET_VAR, FALSE, ifidx);
    if (unlikely(ret)) {
        DHD_ERROR(
            ("%s: failed to get APF size limit, ret=%d\n", __FUNCTION__, ret));
    }

    return ret;
}

int dhd_dev_apf_add_filter(struct net_device *ndev, u8 *program,
                           uint32 program_len)
{
    dhd_info_t *dhd = DHD_DEV_INFO(ndev);
    dhd_pub_t *dhdp = &dhd->pub;
    int ret;

    DHD_APF_LOCK(ndev);

    /* delete, if filter already exists */
    if (dhdp->apf_set) {
        ret = __dhd_apf_delete_filter(ndev, PKT_FILTER_APF_ID);
        if (unlikely(ret)) {
            goto exit;
        }
        dhdp->apf_set = FALSE;
    }

    ret = __dhd_apf_add_filter(ndev, PKT_FILTER_APF_ID, program, program_len);
    if (ret) {
        goto exit;
    }
    dhdp->apf_set = TRUE;

    if (dhdp->in_suspend && dhdp->apf_set &&
        !(dhdp->op_mode & DHD_FLAG_HOSTAP_MODE)) {
        /* Driver is still in (early) suspend state, enable APF filter back */
        ret = __dhd_apf_config_filter(ndev, PKT_FILTER_APF_ID,
                                      PKT_FILTER_MODE_FORWARD_ON_MATCH, TRUE);
    }
exit:
    DHD_APF_UNLOCK(ndev);

    return ret;
}

int dhd_dev_apf_enable_filter(struct net_device *ndev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(ndev);
    dhd_pub_t *dhdp = &dhd->pub;
    int ret = 0;
    bool nan_dp_active = false;

    DHD_APF_LOCK(ndev);
#ifdef WL_NAN
    nan_dp_active = wl_cfgnan_is_dp_active(ndev);
#endif /* WL_NAN */
    if (dhdp->apf_set &&
        (!(dhdp->op_mode & DHD_FLAG_HOSTAP_MODE) && !nan_dp_active)) {
        ret = __dhd_apf_config_filter(ndev, PKT_FILTER_APF_ID,
                                      PKT_FILTER_MODE_FORWARD_ON_MATCH, TRUE);
    }

    DHD_APF_UNLOCK(ndev);

    return ret;
}

int dhd_dev_apf_disable_filter(struct net_device *ndev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(ndev);
    dhd_pub_t *dhdp = &dhd->pub;
    int ret = 0;

    DHD_APF_LOCK(ndev);

    if (dhdp->apf_set) {
        ret = __dhd_apf_config_filter(ndev, PKT_FILTER_APF_ID,
                                      PKT_FILTER_MODE_FORWARD_ON_MATCH, FALSE);
    }

    DHD_APF_UNLOCK(ndev);

    return ret;
}

int dhd_dev_apf_delete_filter(struct net_device *ndev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(ndev);
    dhd_pub_t *dhdp = &dhd->pub;
    int ret = 0;

    DHD_APF_LOCK(ndev);

    if (dhdp->apf_set) {
        ret = __dhd_apf_delete_filter(ndev, PKT_FILTER_APF_ID);
        if (!ret) {
            dhdp->apf_set = FALSE;
        }
    }

    DHD_APF_UNLOCK(ndev);

    return ret;
}
#endif /* PKT_FILTER_SUPPORT && APF */

static void dhd_hang_process(struct work_struct *work_data)
{
    struct net_device *dev;
#ifdef IFACE_HANG_FORCE_DEV_CLOSE
    struct net_device *ndev;
    uint8 i = 0;
#endif /* IFACE_HANG_FORCE_DEV_CLOSE */
/* Ignore compiler warnings due to -Werror=cast-qual */
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
    struct dhd_info *dhd =
        container_of(work_data, dhd_info_t, dhd_hang_process_work);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif

    if (!dhd || !dhd->iflist[0]) {
        return;
    }
    dev = dhd->iflist[0]->net;

    if (dev) {
#if defined(WL_WIRELESS_EXT)
        wl_iw_send_priv_event(dev, "HANG");
#endif // endif
#if defined(WL_CFG80211)
        wl_cfg80211_hang(dev, WLAN_REASON_UNSPECIFIED);
#endif // endif
    }
#ifdef IFACE_HANG_FORCE_DEV_CLOSE
    /*
     * For HW2, dev_close need to be done to recover
     * from upper layer after hang. For Interposer skip
     * dev_close so that dhd iovars can be used to take
     * socramdump after crash, also skip for HW4 as
     * handling of hang event is different
     */

    rtnl_lock();
    for (i = 0; i < DHD_MAX_IFS; i++) {
        ndev = dhd->iflist[i] ? dhd->iflist[i]->net : NULL;
        if (ndev && (ndev->flags & IFF_UP)) {
            DHD_ERROR(("ndev->name : %s dev close\n", ndev->name));
#ifdef ENABLE_INSMOD_NO_FW_LOAD
            dhd_download_fw_on_driverload = FALSE;
#endif
            dev_close(ndev);
        }
    }
    rtnl_unlock();

#ifdef CONFIG_AP6XXX_WIFI6_HDF
    OSL_SLEEP(0x1F4);
    BDH6_ResetDriver();
#endif
#endif /* IFACE_HANG_FORCE_DEV_CLOSE */
}

#ifdef EXYNOS_PCIE_LINKDOWN_RECOVERY
extern dhd_pub_t *link_recovery;
void dhd_host_recover_link(void)
{
    DHD_ERROR(("****** %s ******\n", __FUNCTION__));
    link_recovery->hang_reason = HANG_REASON_PCIE_LINK_DOWN_RC_DETECT;
    dhd_bus_set_linkdown(link_recovery, TRUE);
    dhd_os_send_hang_message(link_recovery);
}
EXPORT_SYMBOL(dhd_host_recover_link);
#endif /* EXYNOS_PCIE_LINKDOWN_RECOVERY */

int dhd_os_send_hang_message(dhd_pub_t *dhdp)
{
    int ret = 0;
#ifdef WL_CFG80211
    struct net_device *primary_ndev;
    struct bcm_cfg80211 *cfg;
#ifdef DHD_FILE_DUMP_EVENT
    dhd_info_t *dhd_info = NULL;
#endif /* DHD_FILE_DUMP_EVENT */
#endif /* WL_CFG80211 */

    if (!dhdp) {
        DHD_ERROR(("%s: dhdp is null\n", __FUNCTION__));
        return -EINVAL;
    }

#if defined(WL_CFG80211) && defined(DHD_FILE_DUMP_EVENT)
    dhd_info = (dhd_info_t *)dhdp->info;

    if (dhd_info->scheduled_memdump) {
        DHD_ERROR_RLMT(
            ("[DUMP]:%s, memdump in progress. return\n", __FUNCTION__));
        dhdp->hang_was_pending = 1;
        return BCME_OK;
    }
#endif /* WL_CFG80211 && DHD_FILE_DUMP_EVENT */

#ifdef WL_CFG80211
    primary_ndev = dhd_linux_get_primary_netdev(dhdp);
    if (!primary_ndev) {
        DHD_ERROR(("%s: Cannot find primary netdev\n", __FUNCTION__));
        return -ENODEV;
    }
    cfg = wl_get_cfg(primary_ndev);
    if (!cfg) {
        DHD_ERROR(("%s: Cannot find cfg\n", __FUNCTION__));
        return -EINVAL;
    }

    /* Skip sending HANG event to framework if driver is not ready */
    if (!wl_get_drv_status(cfg, READY, primary_ndev)) {
        DHD_ERROR(("%s: device is not ready\n", __FUNCTION__));
        return -ENODEV;
    }
#endif /* WL_CFG80211 */

    if (!dhdp->hang_was_sent) {
#if defined(CONFIG_BCM_DETECT_CONSECUTIVE_HANG)
        dhdp->hang_counts++;
        if (dhdp->hang_counts >= MAX_CONSECUTIVE_HANG_COUNTS) {
            DHD_ERROR(("%s, Consecutive hang from Dongle :%u\n", __func__,
                       dhdp->hang_counts));
            BUG_ON(1);
        }
#endif /* CONFIG_BCM_DETECT_CONSECUTIVE_HANG */
#ifdef DHD_DEBUG_UART
        /* If PCIe lane has broken, execute the debug uart application
         * to gether a ramdump data from dongle via uart
         */
        if (!dhdp->info->duart_execute) {
            dhd_deferred_schedule_work(
                dhdp->info->dhd_deferred_wq, (void *)dhdp,
                DHD_WQ_WORK_DEBUG_UART_DUMP, dhd_debug_uart_exec_rd,
                DHD_WQ_WORK_PRIORITY_HIGH);
        }
#endif /* DHD_DEBUG_UART */
        dhdp->hang_was_sent = 1;
#ifdef BT_OVER_SDIO
        dhdp->is_bt_recovery_required = TRUE;
#endif // endif
        schedule_work(&dhdp->info->dhd_hang_process_work);
        DHD_ERROR(("%s: Event HANG send up due to  re=%d te=%d s=%d\n",
                   __FUNCTION__, dhdp->rxcnt_timeout, dhdp->txcnt_timeout,
                   dhdp->busstate));
        printf("%s\n", info_string);
        printf("MAC %pM\n", &dhdp->mac);
    }
    return ret;
}

int net_os_send_hang_message(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    int ret = 0;

    if (dhd) {
        /* Report FW problem when enabled */
        if (dhd->pub.hang_report) {
#ifdef BT_OVER_SDIO
            if (netif_running(dev)) {
#endif /* BT_OVER_SDIO */
                ret = dhd_os_send_hang_message(&dhd->pub);
#ifdef BT_OVER_SDIO
            }
            DHD_ERROR(("%s: HANG -> Reset BT\n", __FUNCTION__));
            bcmsdh_btsdio_process_dhd_hang_notification(!netif_running(dev));
#endif /* BT_OVER_SDIO */
        } else {
            DHD_ERROR(
                ("%s: FW HANG ignored (for testing purpose) and not sent up\n",
                 __FUNCTION__));
        }
    }
    return ret;
}

int net_os_send_hang_message_reason(struct net_device *dev,
                                    const char *string_num)
{
    dhd_info_t *dhd = NULL;
    dhd_pub_t *dhdp = NULL;
    int reason;

    dhd = DHD_DEV_INFO(dev);
    if (dhd) {
        dhdp = &dhd->pub;
    }

    if (!dhd || !dhdp) {
        return 0;
    }

    reason = bcm_strtoul(string_num, NULL, 0);
    DHD_INFO(("%s: Enter, reason=0x%x\n", __FUNCTION__, reason));

    if ((reason <= HANG_REASON_MASK) || (reason >= HANG_REASON_MAX)) {
        reason = 0;
    }

    dhdp->hang_reason = reason;

    return net_os_send_hang_message(dev);
}

int dhd_net_wifi_platform_set_power(struct net_device *dev, bool on,
                                    unsigned long delay_msec)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    return wifi_platform_set_power(dhd->adapter, on, delay_msec);
}

bool dhd_force_country_change(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);

    if (dhd && dhd->pub.up) {
        return dhd->pub.force_country_change;
    }
    return FALSE;
}

void dhd_get_customized_country_code(struct net_device *dev,
                                     char *country_iso_code,
                                     wl_country_t *cspec)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
#if defined(DHD_BLOB_EXISTENCE_CHECK)
    if (!dhd->pub.is_blob)
#endif /* DHD_BLOB_EXISTENCE_CHECK */
    {
#if defined(CUSTOM_COUNTRY_CODE)
        get_customized_country_code(dhd->adapter, country_iso_code, cspec,
                                    dhd->pub.dhd_cflags);
#else
        get_customized_country_code(dhd->adapter, country_iso_code, cspec);
#endif /* CUSTOM_COUNTRY_CODE */
    }
#if defined(DHD_BLOB_EXISTENCE_CHECK) && !defined(CUSTOM_COUNTRY_CODE)
    else {
        /* Replace the ccode to XZ if ccode is undefined country */
        if (strncmp(country_iso_code, "", WLC_CNTRY_BUF_SZ) == 0) {
            strlcpy(country_iso_code, "XZ", WLC_CNTRY_BUF_SZ);
            strlcpy(cspec->country_abbrev, country_iso_code, WLC_CNTRY_BUF_SZ);
            strlcpy(cspec->ccode, country_iso_code, WLC_CNTRY_BUF_SZ);
            DHD_ERROR(
                ("%s: ccode change to %s\n", __FUNCTION__, country_iso_code));
        }
    }
#endif /* DHD_BLOB_EXISTENCE_CHECK && !CUSTOM_COUNTRY_CODE */

    BCM_REFERENCE(dhd);
}

void dhd_bus_country_set(struct net_device *dev, wl_country_t *cspec,
                         bool notify)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
#ifdef WL_CFG80211
    struct bcm_cfg80211 *cfg = wl_get_cfg(dev);
#endif // endif

    if (dhd && dhd->pub.up) {
        memcpy(&dhd->pub.dhd_cspec, cspec, sizeof(wl_country_t));
#ifdef WL_CFG80211
        wl_update_wiphybands(cfg, notify);
#endif // endif
    }
}

void dhd_bus_band_set(struct net_device *dev, uint band)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
#ifdef WL_CFG80211
    struct bcm_cfg80211 *cfg = wl_get_cfg(dev);
#endif // endif
    if (dhd && dhd->pub.up) {
#ifdef WL_CFG80211
        wl_update_wiphybands(cfg, true);
#endif // endif
    }
}

int dhd_net_set_fw_path(struct net_device *dev, char *fw)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);

    if (!fw || fw[0] == '\0') {
        return -EINVAL;
    }

    strncpy(dhd->fw_path, fw, sizeof(dhd->fw_path) - 1);
    dhd->fw_path[sizeof(dhd->fw_path) - 1] = '\0';

#if defined(SOFTAP)
    if (strstr(fw, "apsta") != NULL) {
        DHD_INFO(("GOT APSTA FIRMWARE\n"));
        ap_fw_loaded = TRUE;
    } else {
        DHD_INFO(("GOT STA FIRMWARE\n"));
        ap_fw_loaded = FALSE;
    }
#endif // endif
    return 0;
}

void dhd_net_if_lock(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    dhd_net_if_lock_local(dhd);
}

void dhd_net_if_unlock(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    dhd_net_if_unlock_local(dhd);
}

static void dhd_net_if_lock_local(dhd_info_t *dhd)
{
    if (dhd) {
        mutex_lock(&dhd->dhd_net_if_mutex);
    }
}

static void dhd_net_if_unlock_local(dhd_info_t *dhd)
{
    if (dhd) {
        mutex_unlock(&dhd->dhd_net_if_mutex);
    }
}

static void dhd_suspend_lock(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    if (dhd) {
        mutex_lock(&dhd->dhd_suspend_mutex);
    }
}

static void dhd_suspend_unlock(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    if (dhd) {
        mutex_unlock(&dhd->dhd_suspend_mutex);
    }
}

unsigned long dhd_os_general_spin_lock(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    unsigned long flags = 0;

    if (dhd) {
        spin_lock_irqsave(&dhd->dhd_lock, flags);
    }

    return flags;
}

void dhd_os_general_spin_unlock(dhd_pub_t *pub, unsigned long flags)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        spin_unlock_irqrestore(&dhd->dhd_lock, flags);
    }
}

/* Linux specific multipurpose spinlock API */
void *dhd_os_spin_lock_init(osl_t *osh)
{
    /* Adding 4 bytes since the sizeof(spinlock_t) could be 0 */
    /* if CONFIG_SMP and CONFIG_DEBUG_SPINLOCK are not defined */
    /* and this results in kernel asserts in internal builds */
    spinlock_t *lock = MALLOC(osh, sizeof(spinlock_t) + 4);
    if (lock) {
        spin_lock_init(lock);
    }
    return ((void *)lock);
}
void dhd_os_spin_lock_deinit(osl_t *osh, void *lock)
{
    if (lock) {
        MFREE(osh, lock, sizeof(spinlock_t) + 0x4);
    }
}
unsigned long dhd_os_spin_lock(void *lock)
{
    unsigned long flags = 0;

    if (lock) {
        spin_lock_irqsave((spinlock_t *)lock, flags);
    }

    return flags;
}
void dhd_os_spin_unlock(void *lock, unsigned long flags)
{
    if (lock) {
        spin_unlock_irqrestore((spinlock_t *)lock, flags);
    }
}

void *dhd_os_dbgring_lock_init(osl_t *osh)
{
    struct mutex *mtx = NULL;

    mtx = MALLOCZ(osh, sizeof(*mtx));
    if (mtx) {
        mutex_init(mtx);
    }

    return mtx;
}

void dhd_os_dbgring_lock_deinit(osl_t *osh, void *mtx)
{
    if (mtx) {
        mutex_destroy(mtx);
        MFREE(osh, mtx, sizeof(struct mutex));
    }
}

static int dhd_get_pend_8021x_cnt(dhd_info_t *dhd)
{
    return (atomic_read(&dhd->pend_8021x_cnt));
}

#define MAX_WAIT_FOR_8021X_TX 100

int dhd_wait_pend8021x(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    int timeout = msecs_to_jiffies(10);
    int ntimes = MAX_WAIT_FOR_8021X_TX;
    int pend = dhd_get_pend_8021x_cnt(dhd);

    while (ntimes && pend) {
        if (pend) {
            set_current_state(TASK_INTERRUPTIBLE);
            DHD_PERIM_UNLOCK(&dhd->pub);
            schedule_timeout(timeout);
            DHD_PERIM_LOCK(&dhd->pub);
            set_current_state(TASK_RUNNING);
            ntimes--;
        }
        pend = dhd_get_pend_8021x_cnt(dhd);
    }
    if (ntimes == 0) {
        atomic_set(&dhd->pend_8021x_cnt, 0);
        WL_MSG(dev->name, "TIMEOUT\n");
    }
    return pend;
}

#if defined(DHD_DEBUG)
int write_file(const char *file_name, uint32 flags, uint8 *buf, int size)
{
    int ret = 0;
    struct file *fp = NULL;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    mm_segment_t old_fs;
#endif
    loff_t pos = 0;
    /* change to KERNEL_DS address limit */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    old_fs = get_fs();
    set_fs(KERNEL_DS);
#endif

    /* open file to write */
    fp = filp_open(file_name, flags, 0664);
    if (IS_ERR(fp)) {
        DHD_ERROR(("open file error, err = %ld\n", PTR_ERR(fp)));
        goto exit;
    }

    /* Write buf to file */
    ret = compat_vfs_write(fp, buf, size, &pos);
    if (ret < 0) {
        DHD_ERROR(("write file error, err = %d\n", ret));
        goto exit;
    }

    /* Sync file from filesystem to physical media */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
    ret = vfs_fsync(fp, 0);
#else
        ret = vfs_fsync(fp, fp->f_path.dentry, 0);
#endif
    if (ret < 0) {
        DHD_ERROR(("sync file error, error = %d\n", ret));
        goto exit;
    }
    ret = BCME_OK;

exit:
    /* close file before return */
    if (!IS_ERR(fp)) {
        filp_close(fp, current->files);
    }

    /* restore previous address limit */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    set_fs(old_fs);
#endif

    return ret;
}
#endif // endif

#ifdef DHD_DEBUG
static void dhd_convert_memdump_type_to_str(uint32 type, char *buf,
                                            int substr_type)
{
    char *type_str = NULL;

    switch (type) {
        case DUMP_TYPE_RESUMED_ON_TIMEOUT:
            type_str = "resumed_on_timeout";
            break;
        case DUMP_TYPE_D3_ACK_TIMEOUT:
            type_str = "D3_ACK_timeout";
            break;
        case DUMP_TYPE_DONGLE_TRAP:
            type_str = "Dongle_Trap";
            break;
        case DUMP_TYPE_MEMORY_CORRUPTION:
            type_str = "Memory_Corruption";
            break;
        case DUMP_TYPE_PKTID_AUDIT_FAILURE:
            type_str = "PKTID_AUDIT_Fail";
            break;
        case DUMP_TYPE_PKTID_INVALID:
            type_str = "PKTID_INVALID";
            break;
        case DUMP_TYPE_SCAN_TIMEOUT:
            type_str = "SCAN_timeout";
            break;
        case DUMP_TYPE_SCAN_BUSY:
            type_str = "SCAN_Busy";
            break;
        case DUMP_TYPE_BY_SYSDUMP:
            if (substr_type == CMD_UNWANTED) {
                type_str = "BY_SYSDUMP_FORUSER_unwanted";
            } else if (substr_type == CMD_DISCONNECTED) {
                type_str = "BY_SYSDUMP_FORUSER_disconnected";
            } else {
                type_str = "BY_SYSDUMP_FORUSER";
            }
            break;
        case DUMP_TYPE_BY_LIVELOCK:
            type_str = "BY_LIVELOCK";
            break;
        case DUMP_TYPE_AP_LINKUP_FAILURE:
            type_str = "BY_AP_LINK_FAILURE";
            break;
        case DUMP_TYPE_AP_ABNORMAL_ACCESS:
            type_str = "INVALID_ACCESS";
            break;
        case DUMP_TYPE_RESUMED_ON_TIMEOUT_RX:
            type_str = "ERROR_RX_TIMED_OUT";
            break;
        case DUMP_TYPE_RESUMED_ON_TIMEOUT_TX:
            type_str = "ERROR_TX_TIMED_OUT";
            break;
        case DUMP_TYPE_CFG_VENDOR_TRIGGERED:
            type_str = "CFG_VENDOR_TRIGGERED";
            break;
        case DUMP_TYPE_RESUMED_ON_INVALID_RING_RDWR:
            type_str = "BY_INVALID_RING_RDWR";
            break;
        case DUMP_TYPE_IFACE_OP_FAILURE:
            type_str = "BY_IFACE_OP_FAILURE";
            break;
        case DUMP_TYPE_TRANS_ID_MISMATCH:
            type_str = "BY_TRANS_ID_MISMATCH";
            break;
#ifdef DEBUG_DNGL_INIT_FAIL
        case DUMP_TYPE_DONGLE_INIT_FAILURE:
            type_str = "DONGLE_INIT_FAIL";
            break;
#endif /* DEBUG_DNGL_INIT_FAIL */
        case DUMP_TYPE_DONGLE_HOST_EVENT:
            type_str = "BY_DONGLE_HOST_EVENT";
            break;
        case DUMP_TYPE_SMMU_FAULT:
            type_str = "SMMU_FAULT";
            break;
        case DUMP_TYPE_BY_USER:
            type_str = "BY_USER";
            break;
#ifdef DHD_ERPOM
        case DUMP_TYPE_DUE_TO_BT:
            type_str = "DUE_TO_BT";
            break;
#endif /* DHD_ERPOM */
        case DUMP_TYPE_LOGSET_BEYOND_RANGE:
            type_str = "LOGSET_BEYOND_RANGE";
            break;
        case DUMP_TYPE_CTO_RECOVERY:
            type_str = "CTO_RECOVERY";
            break;
        case DUMP_TYPE_SEQUENTIAL_PRIVCMD_ERROR:
            type_str = "SEQUENTIAL_PRIVCMD_ERROR";
            break;
        case DUMP_TYPE_PROXD_TIMEOUT:
            type_str = "PROXD_TIMEOUT";
            break;
        case DUMP_TYPE_PKTID_POOL_DEPLETED:
            type_str = "PKTID_POOL_DEPLETED";
            break;
        default:
            type_str = "Unknown_type";
            break;
    }

    strncpy(buf, type_str, strlen(type_str));
    buf[strlen(type_str)] = 0;
}

void dhd_get_memdump_filename(struct net_device *ndev, char *memdump_path,
                              int len, char *fname)
{
    char memdump_type[32];
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(ndev);
#else
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(ndev);
#endif
    dhd_pub_t *dhdp = &dhd->pub;

    /* Init file name */
    memset(memdump_path, 0, len);
    memset(memdump_type, 0, sizeof(memdump_type));
    dhd_convert_memdump_type_to_str(dhdp->memdump_type, memdump_type,
                                    dhdp->debug_dump_subcmd);
    clear_debug_dump_time(dhdp->debug_dump_time_str);
    get_debug_dump_time(dhdp->debug_dump_time_str);
    snprintf(memdump_path, len,
             "%s%s_%s_"
             "%s",
             DHD_COMMON_DUMP_PATH, fname, memdump_type,
             dhdp->debug_dump_time_str);
    if (strstr(fname, "sssr_dump")) {
        DHD_SSSR_PRINT_FILEPATH(dhdp, memdump_path);
    } else {
        DHD_ERROR(("%s: file_path = %s%s\n", __FUNCTION__, memdump_path,
                   FILE_NAME_HAL_TAG));
    }
}

int write_dump_to_file(dhd_pub_t *dhd, uint8 *buf, int size, char *fname)
{
    int ret = 0;
    char memdump_path[128];
    char memdump_type[32];
    uint32 file_mode;

    /* Init file name */
    memset(memdump_path, 0, sizeof(memdump_path));
    memset(memdump_type, 0, sizeof(memdump_type));
    dhd_convert_memdump_type_to_str(dhd->memdump_type, memdump_type,
                                    dhd->debug_dump_subcmd);
    clear_debug_dump_time(dhd->debug_dump_time_str);
    get_debug_dump_time(dhd->debug_dump_time_str);
    snprintf(memdump_path, sizeof(memdump_path),
             "%s%s_%s_"
             "%s",
             DHD_COMMON_DUMP_PATH, fname, memdump_type,
             dhd->debug_dump_time_str);
    file_mode = O_CREAT | O_WRONLY | O_SYNC;

    /* print SOCRAM dump file path */
    DHD_ERROR(("%s: file_path = %s\n", __FUNCTION__, memdump_path));

#ifdef DHD_LOG_DUMP
    dhd_print_buf_addr(dhd, "write_dump_to_file", buf, size);
#endif /* DHD_LOG_DUMP */

    /* Write file */
    ret = write_file(memdump_path, file_mode, buf, size);
#ifdef DHD_DUMP_MNGR
    if (ret == BCME_OK) {
        dhd_dump_file_manage_enqueue(dhd, memdump_path, fname);
    }
#endif /* DHD_DUMP_MNGR */

    return ret;
}
#endif /* DHD_DEBUG */

int dhd_os_wake_lock_timeout(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    unsigned long flags;
    int ret = 0;

    if (dhd && (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
        spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
        ret =
            dhd->wakelock_rx_timeout_enable > dhd->wakelock_ctrl_timeout_enable
                ? dhd->wakelock_rx_timeout_enable
                : dhd->wakelock_ctrl_timeout_enable;
#ifdef CONFIG_HAS_WAKELOCK
        if (dhd->wakelock_rx_timeout_enable) {
            wake_lock_timeout(
                &dhd->wl_rxwake,
                msecs_to_jiffies(dhd->wakelock_rx_timeout_enable));
        }
        if (dhd->wakelock_ctrl_timeout_enable) {
            wake_lock_timeout(
                &dhd->wl_ctrlwake,
                msecs_to_jiffies(dhd->wakelock_ctrl_timeout_enable));
        }
#endif // endif
        dhd->wakelock_rx_timeout_enable = 0;
        dhd->wakelock_ctrl_timeout_enable = 0;
        spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
    }
    return ret;
}

int net_os_wake_lock_timeout(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    int ret = 0;

    if (dhd) {
        ret = dhd_os_wake_lock_timeout(&dhd->pub);
    }
    return ret;
}

int dhd_os_wake_lock_rx_timeout_enable(dhd_pub_t *pub, int val)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    unsigned long flags;

    if (dhd && (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
        spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
        if (val > dhd->wakelock_rx_timeout_enable) {
            dhd->wakelock_rx_timeout_enable = val;
        }
        spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
    }
    return 0;
}

int dhd_os_wake_lock_ctrl_timeout_enable(dhd_pub_t *pub, int val)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    unsigned long flags;

    if (dhd && (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
        spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
        if (val > dhd->wakelock_ctrl_timeout_enable) {
            dhd->wakelock_ctrl_timeout_enable = val;
        }
        spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
    }
    return 0;
}

int dhd_os_wake_lock_ctrl_timeout_cancel(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    unsigned long flags;

    if (dhd && (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
        spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
        dhd->wakelock_ctrl_timeout_enable = 0;
#ifdef CONFIG_HAS_WAKELOCK
        if (wake_lock_active(&dhd->wl_ctrlwake)) {
            wake_unlock(&dhd->wl_ctrlwake);
        }
#endif // endif
        spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
    }
    return 0;
}

int net_os_wake_lock_rx_timeout_enable(struct net_device *dev, int val)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    int ret = 0;

    if (dhd) {
        ret = dhd_os_wake_lock_rx_timeout_enable(&dhd->pub, val);
    }
    return ret;
}

int net_os_wake_lock_ctrl_timeout_enable(struct net_device *dev, int val)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    int ret = 0;

    if (dhd) {
        ret = dhd_os_wake_lock_ctrl_timeout_enable(&dhd->pub, val);
    }
    return ret;
}

#if defined(DHD_TRACE_WAKE_LOCK)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
#include <linux/hashtable.h>
#else
#include <linux/hash.h>
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0) */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
/* Define 2^5 = 32 bucket size hash table */
DEFINE_HASHTABLE(wklock_history, 5);
#else
    /* Define 2^5 = 32 bucket size hash table */
    struct hlist_head wklock_history[32] = {[0 ... 31] = HLIST_HEAD_INIT};
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0) */

atomic_t trace_wklock_onoff;
typedef enum dhd_wklock_type {
    DHD_WAKE_LOCK,
    DHD_WAKE_UNLOCK,
    DHD_WAIVE_LOCK,
    DHD_RESTORE_LOCK
} dhd_wklock_t;

struct wk_trace_record {
    unsigned long addr;            /* Address of the instruction */
    dhd_wklock_t lock_type;        /* lock_type */
    unsigned long long counter;    /* counter information */
    struct hlist_node wklock_node; /* hash node */
};

static struct wk_trace_record *find_wklock_entry(unsigned long addr)
{
    struct wk_trace_record *wklock_info;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
    hash_for_each_possible(wklock_history, wklock_info, wklock_node, addr)
#else
        struct hlist_node *entry;
        int index = hash_long(addr, ilog2(ARRAY_SIZE(wklock_history)));
        hlist_for_each_entry(wklock_info, entry, &wklock_history[index],
                             wklock_node)
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0) */
    {
        if (wklock_info->addr == addr) {
            return wklock_info;
        }
    }
    return NULL;
}

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
#define HASH_ADD(hashtable, node, key)                                         \
    do {                                                                       \
        hash_add(hashtable, node, key);                                        \
    } while (0);
#else
#define HASH_ADD(hashtable, node, key)                                         \
    do {                                                                       \
        int index = hash_long(key, ilog2(ARRAY_SIZE(hashtable)));              \
        hlist_add_head(node, &hashtable[index]);                               \
    } while (0);
#endif /* KERNEL_VER < KERNEL_VERSION(3, 7, 0) */

#define STORE_WKLOCK_RECORD(wklock_type)                                       \
    do {                                                                       \
        struct wk_trace_record *wklock_info = NULL;                            \
        unsigned long func_addr = (unsigned long)__builtin_return_address(0);  \
        wklock_info = find_wklock_entry(func_addr);                            \
        if (wklock_info) {                                                     \
            if (wklock_type == DHD_WAIVE_LOCK ||                               \
                wklock_type == DHD_RESTORE_LOCK) {                             \
                wklock_info->counter = dhd->wakelock_counter;                  \
            } else {                                                           \
                wklock_info->counter++;                                        \
            }                                                                  \
        } else {                                                               \
            wklock_info = kzalloc(sizeof(*wklock_info), GFP_ATOMIC);           \
            if (!wklock_info) {                                                \
                printk("Can't allocate wk_trace_record \n");                   \
            } else {                                                           \
                wklock_info->addr = func_addr;                                 \
                wklock_info->lock_type = wklock_type;                          \
                if (wklock_type == DHD_WAIVE_LOCK ||                           \
                    wklock_type == DHD_RESTORE_LOCK) {                         \
                    wklock_info->counter = dhd->wakelock_counter;              \
                } else {                                                       \
                    wklock_info->counter++;                                    \
                }                                                              \
                HASH_ADD(wklock_history, &wklock_info->wklock_node,            \
                         func_addr);                                           \
            }                                                                  \
        }                                                                      \
    } while (0);

static inline void dhd_wk_lock_rec_dump(void)
{
    int bkt;
    struct wk_trace_record *wklock_info;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
    hash_for_each(wklock_history, bkt, wklock_info, wklock_node)
#else
        struct hlist_node *entry = NULL;
        int max_index = ARRAY_SIZE(wklock_history);
        for (bkt = 0; bkt < max_index; bkt++) {
            hlist_for_each_entry(wklock_info, entry, &wklock_history[bkt],
                                 wklock_node)
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0) */
    {
        switch (wklock_info->lock_type) {
            case DHD_WAKE_LOCK:
                printk("wakelock lock : %pS  lock_counter : %llu \n",
                       (void *)wklock_info->addr, wklock_info->counter);
                break;
            case DHD_WAKE_UNLOCK:
                printk("wakelock unlock : %pS, unlock_counter : %llu \n",
                       (void *)wklock_info->addr, wklock_info->counter);
                break;
            case DHD_WAIVE_LOCK:
                printk("wakelock waive : %pS  before_waive : %llu \n",
                       (void *)wklock_info->addr, wklock_info->counter);
                break;
            case DHD_RESTORE_LOCK:
                printk("wakelock restore : %pS, after_waive : %llu \n",
                       (void *)wklock_info->addr, wklock_info->counter);
                break;
        }
    }
}
}

static void dhd_wk_lock_trace_init(struct dhd_info *dhd)
{
    unsigned long flags;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 0))
    int i;
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0) */

    spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
    hash_init(wklock_history);
#else
        for (i = 0; i < ARRAY_SIZE(wklock_history); i++) {
            INIT_HLIST_HEAD(&wklock_history[i]);
        }
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0) */
    spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
    atomic_set(&trace_wklock_onoff, 1);
}

static void dhd_wk_lock_trace_deinit(struct dhd_info *dhd)
{
    int bkt;
    struct wk_trace_record *wklock_info;
    struct hlist_node *tmp;
    unsigned long flags;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 0))
    struct hlist_node *entry = NULL;
    int max_index = ARRAY_SIZE(wklock_history);
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0) */

    spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
    hash_for_each_safe(wklock_history, bkt, tmp, wklock_info, wklock_node)
#else
        for (bkt = 0; bkt < max_index; bkt++) {
            hlist_for_each_entry_safe(wklock_info, entry, tmp,
                                      &wklock_history[bkt], wklock_node)
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0)) */
    {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
        hash_del(&wklock_info->wklock_node);
#else
                hlist_del_init(&wklock_info->wklock_node);
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0)) */
        kfree(wklock_info);
    }
}
spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
}

void dhd_wk_lock_stats_dump(dhd_pub_t *dhdp)
{
    dhd_info_t *dhd = (dhd_info_t *)(dhdp->info);
    unsigned long flags;

    printk(KERN_ERR "DHD Printing wl_wake Lock/Unlock Record \r\n");
    spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
    dhd_wk_lock_rec_dump();
    spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
}
#else
#define STORE_WKLOCK_RECORD(wklock_type)
#endif /* ! DHD_TRACE_WAKE_LOCK */

int dhd_os_wake_lock(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    unsigned long flags;
    int ret = 0;

    if (dhd && (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
        spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
        if (dhd->wakelock_counter == 0 && !dhd->waive_wakelock) {
#ifdef CONFIG_HAS_WAKELOCK
            wake_lock(&dhd->wl_wifi);
#elif defined(BCMSDIO)
            dhd_bus_dev_pm_stay_awake(pub);
#endif // endif
        }
#ifdef DHD_TRACE_WAKE_LOCK
        if (atomic_read(&trace_wklock_onoff)) {
            STORE_WKLOCK_RECORD(DHD_WAKE_LOCK);
        }
#endif /* DHD_TRACE_WAKE_LOCK */
        dhd->wakelock_counter++;
        ret = dhd->wakelock_counter;
        spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
    }

    return ret;
}

void dhd_event_wake_lock(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
#ifdef CONFIG_HAS_WAKELOCK
        wake_lock(&dhd->wl_evtwake);
#elif defined(BCMSDIO)
        dhd_bus_dev_pm_stay_awake(pub);
#endif // endif
    }
}

void dhd_pm_wake_lock_timeout(dhd_pub_t *pub, int val)
{
#ifdef CONFIG_HAS_WAKELOCK
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        wake_lock_timeout(&dhd->wl_pmwake, msecs_to_jiffies(val));
    }
#endif /* CONFIG_HAS_WAKE_LOCK */
}

void dhd_txfl_wake_lock_timeout(dhd_pub_t *pub, int val)
{
#ifdef CONFIG_HAS_WAKELOCK
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        wake_lock_timeout(&dhd->wl_txflwake, msecs_to_jiffies(val));
    }
#endif /* CONFIG_HAS_WAKE_LOCK */
}

int net_os_wake_lock(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    int ret = 0;

    if (dhd) {
        ret = dhd_os_wake_lock(&dhd->pub);
    }
    return ret;
}

int dhd_os_wake_unlock(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    unsigned long flags;
    int ret = 0;

    dhd_os_wake_lock_timeout(pub);
    if (dhd && (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
        spin_lock_irqsave(&dhd->wakelock_spinlock, flags);

        if (dhd->wakelock_counter > 0) {
            dhd->wakelock_counter--;
#ifdef DHD_TRACE_WAKE_LOCK
            if (atomic_read(&trace_wklock_onoff)) {
                STORE_WKLOCK_RECORD(DHD_WAKE_UNLOCK);
            }
#endif /* DHD_TRACE_WAKE_LOCK */
            if (dhd->wakelock_counter == 0 && !dhd->waive_wakelock) {
#ifdef CONFIG_HAS_WAKELOCK
                wake_unlock(&dhd->wl_wifi);
#elif defined(BCMSDIO)
                dhd_bus_dev_pm_relax(pub);
#endif // endif
            }
            ret = dhd->wakelock_counter;
        }
        spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
    }
    return ret;
}

void dhd_event_wake_unlock(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
#ifdef CONFIG_HAS_WAKELOCK
        wake_unlock(&dhd->wl_evtwake);
#elif defined(BCMSDIO)
        dhd_bus_dev_pm_relax(pub);
#endif // endif
    }
}

void dhd_pm_wake_unlock(dhd_pub_t *pub)
{
#ifdef CONFIG_HAS_WAKELOCK
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        /* if wl_pmwake is active, unlock it */
        if (wake_lock_active(&dhd->wl_pmwake)) {
            wake_unlock(&dhd->wl_pmwake);
        }
    }
#endif /* CONFIG_HAS_WAKELOCK */
}

void dhd_txfl_wake_unlock(dhd_pub_t *pub)
{
#ifdef CONFIG_HAS_WAKELOCK
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        /* if wl_txflwake is active, unlock it */
        if (wake_lock_active(&dhd->wl_txflwake)) {
            wake_unlock(&dhd->wl_txflwake);
        }
    }
#endif /* CONFIG_HAS_WAKELOCK */
}

int dhd_os_check_wakelock(dhd_pub_t *pub)
{
#if defined(CONFIG_HAS_WAKELOCK) || defined(BCMSDIO)
#if defined(CONFIG_HAS_WAKELOCK)
    int l1, l2;
    int c, lock_active;
#endif /* CONFIG_HAS_WAKELOCK */
    dhd_info_t *dhd;

    if (!pub) {
        return 0;
    }
    dhd = (dhd_info_t *)(pub->info);
    if (!dhd) {
        return 0;
    }
#endif /* CONFIG_HAS_WAKELOCK || BCMSDIO */

#ifdef CONFIG_HAS_WAKELOCK
    c = dhd->wakelock_counter;
    l1 = wake_lock_active(&dhd->wl_wifi);
    l2 = wake_lock_active(&dhd->wl_wdwake);
    lock_active = (l1 || l2);
    /* Indicate to the SD Host to avoid going to suspend if internal locks are
     * up */
    if (lock_active) {
        DHD_ERROR(("%s wakelock c-%d wl-%d wd-%d\n", __FUNCTION__, c, l1, l2));
        return 1;
    }
#elif defined(BCMSDIO)
    if (dhd && (dhd->wakelock_counter > 0) && dhd_bus_dev_pm_enabled(pub)) {
        DHD_ERROR(("%s wakelock c-%d\n", __FUNCTION__, dhd->wakelock_counter));
        return 1;
    }
#endif // endif
    return 0;
}

int dhd_os_check_wakelock_all(dhd_pub_t *pub)
{
#if defined(CONFIG_HAS_WAKELOCK) || defined(BCMSDIO)
#if defined(CONFIG_HAS_WAKELOCK)
    int l1, l2, l3, l4, l7, l8, l9;
    int l5 = 0, l6 = 0;
    int c, lock_active;
#endif /* CONFIG_HAS_WAKELOCK */
    dhd_info_t *dhd;

    if (!pub) {
        return 0;
    }
    dhd = (dhd_info_t *)(pub->info);
    if (!dhd) {
        return 0;
    }
#endif /* CONFIG_HAS_WAKELOCK || BCMSDIO */

#ifdef CONFIG_HAS_WAKELOCK
    c = dhd->wakelock_counter;
    l1 = wake_lock_active(&dhd->wl_wifi);
    l2 = wake_lock_active(&dhd->wl_wdwake);
    l3 = wake_lock_active(&dhd->wl_rxwake);
    l4 = wake_lock_active(&dhd->wl_ctrlwake);
    l7 = wake_lock_active(&dhd->wl_evtwake);
#ifdef BCMPCIE_OOB_HOST_WAKE
    l5 = wake_lock_active(&dhd->wl_intrwake);
#endif /* BCMPCIE_OOB_HOST_WAKE */
#ifdef DHD_USE_SCAN_WAKELOCK
    l6 = wake_lock_active(&dhd->wl_scanwake);
#endif /* DHD_USE_SCAN_WAKELOCK */
    l8 = wake_lock_active(&dhd->wl_pmwake);
    l9 = wake_lock_active(&dhd->wl_txflwake);
    lock_active = (l1 || l2 || l3 || l4 || l5 || l6 || l7 || l8 || l9);

    /* Indicate to the Host to avoid going to suspend if internal locks are up
     */
    if (lock_active) {
        DHD_ERROR(("%s wakelock c-%d wl-%d wd-%d rx-%d "
                   "ctl-%d intr-%d scan-%d evt-%d, pm-%d, txfl-%d\n",
                   __FUNCTION__, c, l1, l2, l3, l4, l5, l6, l7, l8, l9));
        return 1;
    }
#elif defined(BCMSDIO)
    if (dhd && (dhd->wakelock_counter > 0) && dhd_bus_dev_pm_enabled(pub)) {
        DHD_ERROR(("%s wakelock c-%d\n", __FUNCTION__, dhd->wakelock_counter));
        return 1;
    }
#endif /* defined(BCMSDIO) */
    return 0;
}

int net_os_wake_unlock(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);
    int ret = 0;

    if (dhd) {
        ret = dhd_os_wake_unlock(&dhd->pub);
    }
    return ret;
}

int dhd_os_wd_wake_lock(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    unsigned long flags;
    int ret = 0;

    if (dhd) {
        spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
        if (dhd->wakelock_wd_counter == 0 && !dhd->waive_wakelock) {
#ifdef CONFIG_HAS_WAKELOCK
            /* if wakelock_wd_counter was never used : lock it at once */
            wake_lock(&dhd->wl_wdwake);
#endif // endif
        }
        dhd->wakelock_wd_counter++;
        ret = dhd->wakelock_wd_counter;
        spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
    }
    return ret;
}

int dhd_os_wd_wake_unlock(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    unsigned long flags;
    int ret = 0;

    if (dhd) {
        spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
        if (dhd->wakelock_wd_counter > 0) {
            dhd->wakelock_wd_counter = 0;
            if (!dhd->waive_wakelock) {
#ifdef CONFIG_HAS_WAKELOCK
                wake_unlock(&dhd->wl_wdwake);
#endif // endif
            }
        }
        spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
    }
    return ret;
}

#ifdef BCMPCIE_OOB_HOST_WAKE
void dhd_os_oob_irq_wake_lock_timeout(dhd_pub_t *pub, int val)
{
#ifdef CONFIG_HAS_WAKELOCK
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        wake_lock_timeout(&dhd->wl_intrwake, msecs_to_jiffies(val));
    }
#endif /* CONFIG_HAS_WAKELOCK */
}

void dhd_os_oob_irq_wake_unlock(dhd_pub_t *pub)
{
#ifdef CONFIG_HAS_WAKELOCK
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        /* if wl_intrwake is active, unlock it */
        if (wake_lock_active(&dhd->wl_intrwake)) {
            wake_unlock(&dhd->wl_intrwake);
        }
    }
#endif /* CONFIG_HAS_WAKELOCK */
}
#endif /* BCMPCIE_OOB_HOST_WAKE */

#ifdef DHD_USE_SCAN_WAKELOCK
void dhd_os_scan_wake_lock_timeout(dhd_pub_t *pub, int val)
{
#ifdef CONFIG_HAS_WAKELOCK
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        wake_lock_timeout(&dhd->wl_scanwake, msecs_to_jiffies(val));
    }
#endif /* CONFIG_HAS_WAKELOCK */
}

void dhd_os_scan_wake_unlock(dhd_pub_t *pub)
{
#ifdef CONFIG_HAS_WAKELOCK
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        /* if wl_scanwake is active, unlock it */
        if (wake_lock_active(&dhd->wl_scanwake)) {
            wake_unlock(&dhd->wl_scanwake);
        }
    }
#endif /* CONFIG_HAS_WAKELOCK */
}
#endif /* DHD_USE_SCAN_WAKELOCK */

/* waive wakelocks for operations such as IOVARs in suspend function, must be
 * closed by a paired function call to dhd_wakelock_restore. returns current
 * wakelock counter
 */
int dhd_os_wake_lock_waive(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    unsigned long flags;
    int ret = 0;

    if (dhd && (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
        spin_lock_irqsave(&dhd->wakelock_spinlock, flags);

        /* dhd_wakelock_waive/dhd_wakelock_restore must be paired */
        if (dhd->waive_wakelock == FALSE) {
#ifdef DHD_TRACE_WAKE_LOCK
            if (atomic_read(&trace_wklock_onoff)) {
                STORE_WKLOCK_RECORD(DHD_WAIVE_LOCK);
            }
#endif /* DHD_TRACE_WAKE_LOCK */
            /* record current lock status */
            dhd->wakelock_before_waive = dhd->wakelock_counter;
            dhd->waive_wakelock = TRUE;
        }
        ret = dhd->wakelock_wd_counter;
        spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
    }
    return ret;
}

int dhd_os_wake_lock_restore(dhd_pub_t *pub)
{
    dhd_info_t *dhd = (dhd_info_t *)(pub->info);
    unsigned long flags;
    int ret = 0;

    if (!dhd) {
        return 0;
    }
    if ((dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT) == 0) {
        return 0;
    }

    spin_lock_irqsave(&dhd->wakelock_spinlock, flags);

    /* dhd_wakelock_waive/dhd_wakelock_restore must be paired */
    if (!dhd->waive_wakelock) {
        goto exit;
    }

    dhd->waive_wakelock = FALSE;
    /* if somebody else acquires wakelock between
     * dhd_wakelock_waive/dhd_wakelock_restore, we need to make it up by calling
     * wake_lock or pm_stay_awake. or if somebody releases the lock in between,
     * do the same by calling wake_unlock or pm_relax
     */
#ifdef DHD_TRACE_WAKE_LOCK
    if (atomic_read(&trace_wklock_onoff)) {
        STORE_WKLOCK_RECORD(DHD_RESTORE_LOCK);
    }
#endif /* DHD_TRACE_WAKE_LOCK */

    if (dhd->wakelock_before_waive == 0 && dhd->wakelock_counter > 0) {
#ifdef CONFIG_HAS_WAKELOCK
        wake_lock(&dhd->wl_wifi);
#elif defined(BCMSDIO)
        dhd_bus_dev_pm_stay_awake(&dhd->pub);
#endif // endif
    } else if (dhd->wakelock_before_waive > 0 && dhd->wakelock_counter == 0) {
#ifdef CONFIG_HAS_WAKELOCK
        wake_unlock(&dhd->wl_wifi);
#elif defined(BCMSDIO)
        dhd_bus_dev_pm_relax(&dhd->pub);
#endif // endif
    }
    dhd->wakelock_before_waive = 0;
exit:
    ret = dhd->wakelock_wd_counter;
    spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
    return ret;
}

void dhd_os_wake_lock_init(struct dhd_info *dhd)
{
    DHD_TRACE(("%s: initialize wake_lock_counters\n", __FUNCTION__));
    dhd->wakelock_counter = 0;
    dhd->wakelock_rx_timeout_enable = 0;
    dhd->wakelock_ctrl_timeout_enable = 0;
    /* wakelocks prevent a system from going into a low power state */
#ifdef CONFIG_HAS_WAKELOCK
    // terence 20161023: can not destroy wl_wifi when wlan down, it will happen
    // null pointer in dhd_ioctl_entry
    wake_lock_init(&dhd->wl_rxwake, WAKE_LOCK_SUSPEND, "wlan_rx_wake");
    wake_lock_init(&dhd->wl_ctrlwake, WAKE_LOCK_SUSPEND, "wlan_ctrl_wake");
    wake_lock_init(&dhd->wl_evtwake, WAKE_LOCK_SUSPEND, "wlan_evt_wake");
    wake_lock_init(&dhd->wl_pmwake, WAKE_LOCK_SUSPEND, "wlan_pm_wake");
    wake_lock_init(&dhd->wl_txflwake, WAKE_LOCK_SUSPEND, "wlan_txfl_wake");
#ifdef BCMPCIE_OOB_HOST_WAKE
    wake_lock_init(&dhd->wl_intrwake, WAKE_LOCK_SUSPEND, "wlan_oob_irq_wake");
#endif /* BCMPCIE_OOB_HOST_WAKE */
#ifdef DHD_USE_SCAN_WAKELOCK
    wake_lock_init(&dhd->wl_scanwake, WAKE_LOCK_SUSPEND, "wlan_scan_wake");
#endif /* DHD_USE_SCAN_WAKELOCK */
#endif /* CONFIG_HAS_WAKELOCK */
#ifdef DHD_TRACE_WAKE_LOCK
    dhd_wk_lock_trace_init(dhd);
#endif /* DHD_TRACE_WAKE_LOCK */
}

void dhd_os_wake_lock_destroy(struct dhd_info *dhd)
{
    DHD_TRACE(("%s: deinit wake_lock_counters\n", __FUNCTION__));
#ifdef CONFIG_HAS_WAKELOCK
    dhd->wakelock_counter = 0;
    dhd->wakelock_rx_timeout_enable = 0;
    dhd->wakelock_ctrl_timeout_enable = 0;
    // terence 20161023: can not destroy wl_wifi when wlan down, it will happen
    // null pointer in dhd_ioctl_entry
    wake_lock_destroy(&dhd->wl_rxwake);
    wake_lock_destroy(&dhd->wl_ctrlwake);
    wake_lock_destroy(&dhd->wl_evtwake);
    wake_lock_destroy(&dhd->wl_pmwake);
    wake_lock_destroy(&dhd->wl_txflwake);
#ifdef BCMPCIE_OOB_HOST_WAKE
    wake_lock_destroy(&dhd->wl_intrwake);
#endif /* BCMPCIE_OOB_HOST_WAKE */
#ifdef DHD_USE_SCAN_WAKELOCK
    wake_lock_destroy(&dhd->wl_scanwake);
#endif /* DHD_USE_SCAN_WAKELOCK */
#ifdef DHD_TRACE_WAKE_LOCK
    dhd_wk_lock_trace_deinit(dhd);
#endif /* DHD_TRACE_WAKE_LOCK */
#endif /* CONFIG_HAS_WAKELOCK */
}

bool dhd_os_check_if_up(dhd_pub_t *pub)
{
    if (!pub) {
        return FALSE;
    }
    return pub->up;
}

/* function to collect firmware, chip id and chip version info */
void dhd_set_version_info(dhd_pub_t *dhdp, char *fw)
{
    int i;

    i = snprintf(info_string, sizeof(info_string),
                 "  Driver: %s\n%s  Firmware: %s\n%s  CLM: %s ",
                 EPI_VERSION_STR, DHD_LOG_PREFIXS, fw, DHD_LOG_PREFIXS,
                 clm_version);
    printf("%s\n", info_string);

    if (!dhdp) {
        return;
    }

    i = snprintf(&info_string[i], sizeof(info_string) - i,
                 "\n  Chip: %x Rev %x", dhd_conf_get_chip(dhdp),
                 dhd_conf_get_chiprev(dhdp));
}

int dhd_ioctl_entry_local(struct net_device *net, wl_ioctl_t *ioc, int cmd)
{
    int ifidx;
    int ret = 0;
    dhd_info_t *dhd = NULL;

    if (!net || !DEV_PRIV(net)) {
        DHD_ERROR(("%s invalid parameter net %p dev_priv %p\n", __FUNCTION__,
                   net, DEV_PRIV(net)));
        return -EINVAL;
    }

    dhd = DHD_DEV_INFO(net);
    if (!dhd) {
        return -EINVAL;
    }

    ifidx = dhd_net2idx(dhd, net);
    if (ifidx == DHD_BAD_IF) {
        DHD_ERROR(("%s bad ifidx\n", __FUNCTION__));
        return -ENODEV;
    }

    DHD_OS_WAKE_LOCK(&dhd->pub);
    DHD_PERIM_LOCK(&dhd->pub);

    ret = dhd_wl_ioctl(&dhd->pub, ifidx, ioc, ioc->buf, ioc->len);
    dhd_check_hang(net, &dhd->pub, ret);

    DHD_PERIM_UNLOCK(&dhd->pub);
    DHD_OS_WAKE_UNLOCK(&dhd->pub);

    return ret;
}

bool dhd_os_check_hang(dhd_pub_t *dhdp, int ifidx, int ret)
{
    struct net_device *net;

    net = dhd_idx2net(dhdp, ifidx);
    if (!net) {
        DHD_ERROR(("%s : Invalid index : %d\n", __FUNCTION__, ifidx));
        return -EINVAL;
    }

    return dhd_check_hang(net, dhdp, ret);
}

/* Return instance */
int dhd_get_instance(dhd_pub_t *dhdp)
{
    return dhdp->info->unit;
}

#if defined(WL_CFG80211) && defined(SUPPORT_DEEP_SLEEP)
#define MAX_TRY_CNT 5 /* Number of tries to disable deepsleep */
int dhd_deepsleep(struct net_device *dev, int flag)
{
    char iovbuf[20];
    uint powervar = 0;
    dhd_info_t *dhd;
    dhd_pub_t *dhdp;
    int cnt = 0;
    int ret = 0;

    dhd = DHD_DEV_INFO(dev);
    dhdp = &dhd->pub;

    switch (flag) {
        case 1: /* Deepsleep on */
            DHD_ERROR(("[WiFi] Deepsleep On\n"));
            /* give some time to sysioc_work before deepsleep */
            OSL_SLEEP(0xC8);
#ifdef PKT_FILTER_SUPPORT
            /* disable pkt filter */
            dhd_enable_packet_filter(0, dhdp);
#endif /* PKT_FILTER_SUPPORT */
            /* Disable MPC */
            powervar = 0;
            ret = dhd_iovar(dhdp, 0, "mpc", (char *)&powervar, sizeof(powervar),
                            NULL, 0, TRUE);

            /* Enable Deepsleep */
            powervar = 1;
            ret = dhd_iovar(dhdp, 0, "deepsleep", (char *)&powervar,
                            sizeof(powervar), NULL, 0, TRUE);
            break;

        case 0: /* Deepsleep Off */
            DHD_ERROR(("[WiFi] Deepsleep Off\n"));

            /* Disable Deepsleep */
            for (cnt = 0; cnt < MAX_TRY_CNT; cnt++) {
                powervar = 0;
                ret = dhd_iovar(dhdp, 0, "deepsleep", (char *)&powervar,
                                sizeof(powervar), NULL, 0, TRUE);

                ret =
                    dhd_iovar(dhdp, 0, "deepsleep", (char *)&powervar,
                              sizeof(powervar), iovbuf, sizeof(iovbuf), FALSE);
                if (ret < 0) {
                    DHD_ERROR(("the error of dhd deepsleep status"
                               " ret value :%d\n",
                               ret));
                } else {
                    if (!(*(int *)iovbuf)) {
                        DHD_ERROR(("deepsleep mode is 0,"
                                   " count: %d\n",
                                   cnt));
                        break;
                    }
                }
            }

            /* Enable MPC */
            powervar = 1;
            ret = dhd_iovar(dhdp, 0, "mpc", (char *)&powervar, sizeof(powervar),
                            NULL, 0, TRUE);
            break;
    }

    return 0;
}
#endif /* WL_CFG80211 && SUPPORT_DEEP_SLEEP */

#ifdef PROP_TXSTATUS

void dhd_wlfc_plat_init(void *dhd)
{
#ifdef USE_DYNAMIC_F2_BLKSIZE
    dhdsdio_func_blocksize((dhd_pub_t *)dhd, 2,
                           DYNAMIC_F2_BLKSIZE_FOR_NONLEGACY);
#endif /* USE_DYNAMIC_F2_BLKSIZE */
    return;
}

void dhd_wlfc_plat_deinit(void *dhd)
{
#ifdef USE_DYNAMIC_F2_BLKSIZE
    dhdsdio_func_blocksize((dhd_pub_t *)dhd, 2, sd_f2_blocksize);
#endif /* USE_DYNAMIC_F2_BLKSIZE */
    return;
}

bool dhd_wlfc_skip_fc(void *dhdp, uint8 idx)
{
#ifdef SKIP_WLFC_ON_CONCURRENT

#ifdef WL_CFG80211
    struct net_device *net = dhd_idx2net((dhd_pub_t *)dhdp, idx);
    if (net) {
        /* enable flow control in vsdb mode */
        return !(wl_cfg80211_is_concurrent_mode(net));
    }
#else
    return TRUE; /* skip flow control */
#endif /* WL_CFG80211 */

#else
        return FALSE;
#endif /* SKIP_WLFC_ON_CONCURRENT */
    return FALSE;
}
#endif /* PROP_TXSTATUS */

#ifdef BCMDBGFS
#include <linux/debugfs.h>

typedef struct dhd_dbgfs {
    struct dentry *debugfs_dir;
    struct dentry *debugfs_mem;
    dhd_pub_t *dhdp;
    uint32 size;
} dhd_dbgfs_t;

dhd_dbgfs_t g_dbgfs;

extern uint32 dhd_readregl(void *bp, uint32 addr);
extern uint32 dhd_writeregl(void *bp, uint32 addr, uint32 data);

static int dhd_dbg_state_open(struct inode *inode, struct file *file)
{
    file->private_data = inode->i_private;
    return 0;
}

static ssize_t dhd_dbg_state_read(struct file *file, char __user *ubuf,
                                  size_t count, loff_t *ppos)
{
    ssize_t rval;
    uint32 tmp;
    loff_t pos = *ppos;
    size_t ret;

    if (pos < 0) {
        return -EINVAL;
    }
    if (pos >= g_dbgfs.size || !count) {
        return 0;
    }
    if (count > g_dbgfs.size - pos) {
        count = g_dbgfs.size - pos;
    }

    /* Basically enforce aligned 4 byte reads. It's up to the user to work out
     * the details */
    tmp = dhd_readregl(g_dbgfs.dhdp->bus, file->f_pos & (~3));

    ret = copy_to_user(ubuf, &tmp, 4);
    if (ret == count) {
        return -EFAULT;
    }

    count -= ret;
    *ppos = pos + count;
    rval = count;

    return rval;
}

static ssize_t dhd_debugfs_write(struct file *file, const char __user *ubuf,
                                 size_t count, loff_t *ppos)
{
    loff_t pos = *ppos;
    size_t ret;
    uint32 buf;

    if (pos < 0) {
        return -EINVAL;
    }
    if (pos >= g_dbgfs.size || !count) {
        return 0;
    }
    if (count > g_dbgfs.size - pos) {
        count = g_dbgfs.size - pos;
    }

    ret = copy_from_user(&buf, ubuf, sizeof(uint32));
    if (ret == count) {
        return -EFAULT;
    }

    /* Basically enforce aligned 4 byte writes. It's up to the user to work out
     * the details */
    dhd_writeregl(g_dbgfs.dhdp->bus, file->f_pos & (~3), buf);

    return count;
}

loff_t dhd_debugfs_lseek(struct file *file, loff_t off, int whence)
{
    loff_t pos = -1;

    switch (whence) {
        case 0:
            pos = off;
            break;
        case 1:
            pos = file->f_pos + off;
            break;
        case 0x2:
            pos = g_dbgfs.size - off;
    }
    return (pos < 0 || pos > g_dbgfs.size) ? -EINVAL : (file->f_pos = pos);
}

static const struct file_operations dhd_dbg_state_ops = {
    .read = dhd_dbg_state_read,
    .write = dhd_debugfs_write,
    .open = dhd_dbg_state_open,
    .llseek = dhd_debugfs_lseek};

static void dhd_dbgfs_create(void)
{
    if (g_dbgfs.debugfs_dir) {
        g_dbgfs.debugfs_mem = debugfs_create_file(
            "mem", 0644, g_dbgfs.debugfs_dir, NULL, &dhd_dbg_state_ops);
    }
}

void dhd_dbgfs_init(dhd_pub_t *dhdp)
{
    g_dbgfs.dhdp = dhdp;
    g_dbgfs.size = 0x20000000; /* Allow access to various cores regs */

    g_dbgfs.debugfs_dir = debugfs_create_dir("dhd", 0);
    if (IS_ERR(g_dbgfs.debugfs_dir)) {
        g_dbgfs.debugfs_dir = NULL;
        return;
    }

    dhd_dbgfs_create();

    return;
}

void dhd_dbgfs_remove(void)
{
    debugfs_remove(g_dbgfs.debugfs_mem);
    debugfs_remove(g_dbgfs.debugfs_dir);

    bzero((unsigned char *)&g_dbgfs, sizeof(g_dbgfs));
}
#endif /* BCMDBGFS */

#ifdef CUSTOM_SET_CPUCORE
void dhd_set_cpucore(dhd_pub_t *dhd, int set)
{
    int e_dpc = 0, e_rxf = 0, retry_set = 0;

    if (!(dhd->chan_isvht80)) {
        DHD_ERROR(("%s: chan_status(%d) cpucore!!!\n", __FUNCTION__,
                   dhd->chan_isvht80));
        return;
    }

    if (DPC_CPUCORE) {
        do {
            if (set == TRUE) {
                e_dpc = set_cpus_allowed_ptr(dhd->current_dpc,
                                             cpumask_of(DPC_CPUCORE));
            } else {
                e_dpc = set_cpus_allowed_ptr(dhd->current_dpc,
                                             cpumask_of(PRIMARY_CPUCORE));
            }
            if (retry_set++ > MAX_RETRY_SET_CPUCORE) {
                DHD_ERROR(("%s: dpc(%d) invalid cpu!\n", __FUNCTION__, e_dpc));
                return;
            }
            if (e_dpc < 0) {
                OSL_SLEEP(1);
            }
        } while (e_dpc < 0);
    }
    if (RXF_CPUCORE) {
        do {
            if (set == TRUE) {
                e_rxf = set_cpus_allowed_ptr(dhd->current_rxf,
                                             cpumask_of(RXF_CPUCORE));
            } else {
                e_rxf = set_cpus_allowed_ptr(dhd->current_rxf,
                                             cpumask_of(PRIMARY_CPUCORE));
            }
            if (retry_set++ > MAX_RETRY_SET_CPUCORE) {
                DHD_ERROR(("%s: rxf(%d) invalid cpu!\n", __FUNCTION__, e_rxf));
                return;
            }
            if (e_rxf < 0) {
                OSL_SLEEP(1);
            }
        } while (e_rxf < 0);
    }
    DHD_TRACE(("%s: set(%d) cpucore success!\n", __FUNCTION__, set));

    return;
}
#endif /* CUSTOM_SET_CPUCORE */

#ifdef DHD_MCAST_REGEN
/* Get interface specific ap_isolate configuration */
int dhd_get_mcast_regen_bss_enable(dhd_pub_t *dhdp, uint32 idx)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;

    ASSERT(idx < DHD_MAX_IFS);

    ifp = dhd->iflist[idx];

    return ifp->mcast_regen_bss_enable;
}

/* Set interface specific mcast_regen configuration */
int dhd_set_mcast_regen_bss_enable(dhd_pub_t *dhdp, uint32 idx, int val)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;

    ASSERT(idx < DHD_MAX_IFS);

    ifp = dhd->iflist[idx];

    ifp->mcast_regen_bss_enable = val;

    /* Disable rx_pkt_chain feature for interface, if mcast_regen feature
     * is enabled
     */
    dhd_update_rx_pkt_chainable_state(dhdp, idx);
    return BCME_OK;
}
#endif /* DHD_MCAST_REGEN */

/* Get interface specific ap_isolate configuration */
int dhd_get_ap_isolate(dhd_pub_t *dhdp, uint32 idx)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;

    ASSERT(idx < DHD_MAX_IFS);

    ifp = dhd->iflist[idx];

    return ifp->ap_isolate;
}

/* Set interface specific ap_isolate configuration */
int dhd_set_ap_isolate(dhd_pub_t *dhdp, uint32 idx, int val)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;

    ASSERT(idx < DHD_MAX_IFS);

    ifp = dhd->iflist[idx];

    if (ifp) {
        ifp->ap_isolate = val;
    }

    return 0;
}

#ifdef DHD_FW_COREDUMP
void dhd_schedule_memdump(dhd_pub_t *dhdp, uint8 *buf, uint32 size)
{
    unsigned long flags = 0;
    dhd_dump_t *dump = NULL;
    dhd_info_t *dhd_info = NULL;
#if !defined(DHD_DUMP_FILE_WRITE_FROM_KERNEL)
    log_dump_type_t type = DLD_BUF_TYPE_ALL;
#endif /* !DHD_DUMP_FILE_WRITE_FROM_KERNEL */

    dhd_info = (dhd_info_t *)dhdp->info;
    dump = (dhd_dump_t *)MALLOC(dhdp->osh, sizeof(dhd_dump_t));
    if (dump == NULL) {
        DHD_ERROR(("%s: dhd dump memory allocation failed\n", __FUNCTION__));
        return;
    }
    dump->buf = buf;
    dump->bufsize = size;
#ifdef BCMPCIE
    dhd_get_hscb_info(dhdp, (void *)(&dump->hscb_buf),
                      (uint32 *)(&dump->hscb_bufsize));
#else  /* BCMPCIE */
        dump->hscb_bufsize = 0;
#endif /* BCMPCIE */

#ifdef DHD_LOG_DUMP
    dhd_print_buf_addr(dhdp, "memdump", buf, size);
#if !defined(DHD_DUMP_FILE_WRITE_FROM_KERNEL)
    /* Print out buffer infomation */
    dhd_log_dump_buf_addr(dhdp, &type);
#endif /* !DHD_DUMP_FILE_WRITE_FROM_KERNEL */
#endif /* DHD_LOG_DUMP */

    if (dhdp->memdump_enabled == DUMP_MEMONLY) {
        BUG_ON(1);
    }

#if defined(DEBUG_DNGL_INIT_FAIL) || defined(DHD_ERPOM) ||                     \
    defined(DNGL_AXI_ERROR_LOGGING)
    if (
#if defined(DEBUG_DNGL_INIT_FAIL)
        (dhdp->memdump_type == DUMP_TYPE_DONGLE_INIT_FAILURE) ||
#endif /* DEBUG_DNGL_INIT_FAIL */
#ifdef DHD_ERPOM
        (dhdp->memdump_type == DUMP_TYPE_DUE_TO_BT) ||
#endif /* DHD_ERPOM */
#ifdef DNGL_AXI_ERROR_LOGGING
        (dhdp->memdump_type == DUMP_TYPE_SMMU_FAULT) ||
#endif /* DNGL_AXI_ERROR_LOGGING */
        FALSE) {
#if defined(DHD_DUMP_FILE_WRITE_FROM_KERNEL) && defined(DHD_LOG_DUMP)
        log_dump_type_t *flush_type = NULL;
#endif /* DHD_DUMP_FILE_WRITE_FROM_KERNEL && DHD_LOG_DUMP */
        dhd_info->scheduled_memdump = FALSE;
        (void)dhd_mem_dump((void *)dhdp->info, (void *)dump, 0);
#if defined(DHD_DUMP_FILE_WRITE_FROM_KERNEL) && defined(DHD_LOG_DUMP)
        /* for dongle init fail cases, 'dhd_mem_dump' does
         * not call 'dhd_log_dump', so call it here.
         */
        flush_type = MALLOCZ(dhdp->osh, sizeof(log_dump_type_t));
        if (flush_type) {
            *flush_type = DLD_BUF_TYPE_ALL;
            DHD_ERROR(("%s: calling log dump.. \n", __FUNCTION__));
            dhd_log_dump(dhdp->info, flush_type, 0);
        }
#endif /* DHD_DUMP_FILE_WRITE_FROM_KERNEL && DHD_LOG_DUMP */
        return;
    }
#endif /* DEBUG_DNGL_INIT_FAIL || DHD_ERPOM || DNGL_AXI_ERROR_LOGGING */

    dhd_info->scheduled_memdump = TRUE;
    /* bus busy bit for mem dump will be cleared in mem dump
     * work item context, after mem dump file is written
     */
    DHD_GENERAL_LOCK(dhdp, flags);
    DHD_BUS_BUSY_SET_IN_MEMDUMP(dhdp);
    DHD_GENERAL_UNLOCK(dhdp, flags);
    DHD_ERROR(("%s: scheduling mem dump.. \n", __FUNCTION__));
    dhd_deferred_schedule_work(dhdp->info->dhd_deferred_wq, (void *)dump,
                               DHD_WQ_WORK_SOC_RAM_DUMP, (void *)dhd_mem_dump,
                               DHD_WQ_WORK_PRIORITY_HIGH);
}

static int dhd_mem_dump(void *handle, void *event_info, u8 event)
{
    dhd_info_t *dhd = handle;
    dhd_pub_t *dhdp = NULL;
    unsigned long flags = 0;
    int ret = 0;
    dhd_dump_t *dump = NULL;

    DHD_ERROR(
        ("%s: ENTER, memdump type %u\n", __FUNCTION__, dhd->pub.memdump_type));

    if (!dhd) {
        DHD_ERROR(("%s: dhd is NULL\n", __FUNCTION__));
        return -ENODEV;
    }

    dhdp = &dhd->pub;
    if (!dhdp) {
        DHD_ERROR(("%s: dhdp is NULL\n", __FUNCTION__));
        return -ENODEV;
    }

    DHD_GENERAL_LOCK(dhdp, flags);
    if (DHD_BUS_CHECK_DOWN_OR_DOWN_IN_PROGRESS(dhdp)) {
        DHD_GENERAL_UNLOCK(dhdp, flags);
        DHD_ERROR(
            ("%s: bus is down! can't collect mem dump. \n", __FUNCTION__));
        ret = -ENODEV;
        goto exit;
    }
    DHD_GENERAL_UNLOCK(dhdp, flags);

#ifdef DHD_SSSR_DUMP
    if (dhdp->sssr_inited && dhdp->collect_sssr) {
        dhdpcie_sssr_dump(dhdp);
    }
    dhdp->collect_sssr = FALSE;
#endif /* DHD_SSSR_DUMP */
#if defined(WL_CFG80211) && defined(DHD_FILE_DUMP_EVENT)
    dhd_wait_for_file_dump(dhdp);
#endif /* WL_CFG80211 && DHD_FILE_DUMP_EVENT */

    dump = (dhd_dump_t *)event_info;
    if (!dump) {
        DHD_ERROR(("%s: dump is NULL\n", __FUNCTION__));
        ret = -EINVAL;
        goto exit;
    }

    /*
     * If kernel does not have file write access enabled
     * then skip writing dumps to files.
     * The dumps will be pushed to HAL layer which will
     * write into files
     */
#ifdef DHD_DUMP_FILE_WRITE_FROM_KERNEL

    if (write_dump_to_file(&dhd->pub, dump->buf, dump->bufsize, "mem_dump")) {
        DHD_ERROR(
            ("%s: writing SoC_RAM dump to the file failed\n", __FUNCTION__));
#ifdef DHD_DEBUG_UART
        dhd->pub.memdump_success = FALSE;
#endif /* DHD_DEBUG_UART */
    }

    /* directly call dhd_log_dump for debug_dump collection from the mem_dump
     * work queue context, no need to schedule another work queue for log dump.
     * In case of user initiated DEBUG_DUMP wpa_cli command
     * (DUMP_TYPE_BY_SYSDUMP), cfg layer is itself scheduling the log_dump work
     * queue. that path is not disturbed. If 'dhd_mem_dump' is called directly
     * then we will not collect debug_dump as it may be called from
     * non-sleepable context.
     */
#ifdef DHD_LOG_DUMP
    if (dhd->scheduled_memdump && dhdp->memdump_type != DUMP_TYPE_BY_SYSDUMP) {
        log_dump_type_t *flush_type =
            MALLOCZ(dhdp->osh, sizeof(log_dump_type_t));
        if (flush_type) {
            *flush_type = DLD_BUF_TYPE_ALL;
            DHD_ERROR(("%s: calling log dump.. \n", __FUNCTION__));
            dhd_log_dump(dhd, flush_type, 0);
        }
    }
#endif /* DHD_LOG_DUMP */

    clear_debug_dump_time(dhdp->debug_dump_time_str);

    /* before calling bug on, wait for other logs to be dumped.
     * we cannot wait in case dhd_mem_dump is called directly
     * as it may not be in a sleepable context
     */
    if (dhd->scheduled_memdump) {
        uint bitmask = 0;
        int timeleft = 0;
#ifdef DHD_SSSR_DUMP
        bitmask |= DHD_BUS_BUSY_IN_SSSRDUMP;
#endif // endif
        if (bitmask != 0) {
            DHD_ERROR(("%s: wait to clear dhd_bus_busy_state: 0x%x\n",
                       __FUNCTION__, dhdp->dhd_bus_busy_state));
            timeleft = dhd_os_busbusy_wait_bitmask(
                dhdp, &dhdp->dhd_bus_busy_state, bitmask, 0);
            if ((timeleft == 0) || (timeleft == 1)) {
                DHD_ERROR(("%s: Timed out dhd_bus_busy_state=0x%x\n",
                           __FUNCTION__, dhdp->dhd_bus_busy_state));
            }
        }
    }

    if (dump->hscb_buf && dump->hscb_bufsize) {
        DHD_ERROR(("%s: write HSCB dump... \n", __FUNCTION__));
        if (write_dump_to_file(&dhd->pub, dump->hscb_buf, dump->hscb_bufsize,
                               "mem_dump_hscb")) {
            DHD_ERROR(
                ("%s: writing HSCB dump to the file failed\n", __FUNCTION__));
#ifdef DHD_DEBUG_UART
            dhd->pub.memdump_success = FALSE;
#endif /* DHD_DEBUG_UART */
        }
    }
#endif /* DHD_DUMP_FILE_WRITE_FROM_KERNEL */

    DHD_ERROR(("%s: memdump type %u\n", __FUNCTION__, dhd->pub.memdump_type));
    if (dhd->pub.memdump_enabled == DUMP_MEMFILE_BUGON &&
#ifdef DHD_LOG_DUMP
        dhd->pub.memdump_type != DUMP_TYPE_BY_SYSDUMP &&
#endif /* DHD_LOG_DUMP */
        dhd->pub.memdump_type != DUMP_TYPE_BY_USER &&
#ifdef DHD_DEBUG_UART
        dhd->pub.memdump_success == TRUE &&
#endif /* DHD_DEBUG_UART */
#ifdef DNGL_EVENT_SUPPORT
        dhd->pub.memdump_type != DUMP_TYPE_DONGLE_HOST_EVENT &&
#endif /* DNGL_EVENT_SUPPORT */
        dhd->pub.memdump_type != DUMP_TYPE_CFG_VENDOR_TRIGGERED) {
#ifdef SHOW_LOGTRACE
        /* Wait till logtrace context is flushed */
        dhd_flush_logtrace_process(dhd);
#endif /* SHOW_LOGTRACE */
        printf("%s\n", info_string);
        printf("MAC %pM\n", &dhdp->mac);
        DHD_ERROR(("%s: call BUG_ON \n", __FUNCTION__));
    }
    DHD_ERROR(("%s: No BUG ON, memdump type %u \n", __FUNCTION__,
               dhd->pub.memdump_type));

exit:
    if (dump) {
        MFREE(dhd->pub.osh, dump, sizeof(dhd_dump_t));
    }
    DHD_GENERAL_LOCK(dhdp, flags);
    DHD_BUS_BUSY_CLEAR_IN_MEMDUMP(&dhd->pub);
    dhd_os_busbusy_wake(dhdp);
    DHD_GENERAL_UNLOCK(dhdp, flags);
    dhd->scheduled_memdump = FALSE;
    if (dhdp->hang_was_pending) {
        DHD_ERROR(("%s: Send pending HANG event...\n", __FUNCTION__));
        dhd_os_send_hang_message(dhdp);
        dhdp->hang_was_pending = 0;
    }
    DHD_ERROR(("%s: EXIT \n", __FUNCTION__));
    return ret;
}
#endif /* DHD_FW_COREDUMP */

#ifdef DHD_SSSR_DUMP
int dhd_sssr_dump_dig_buf_before(void *dev, const void *user_buf, uint32 len)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd_info =
        *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)dev);
#else
        dhd_info_t *dhd_info =
            *(dhd_info_t **)netdev_priv((struct net_device *)dev);
#endif
    dhd_pub_t *dhdp = &dhd_info->pub;
    int pos = 0, ret = BCME_ERROR;
    uint dig_buf_size = 0;

    if (dhdp->sssr_reg_info.vasip_regs.vasip_sr_size) {
        dig_buf_size = dhdp->sssr_reg_info.vasip_regs.vasip_sr_size;
    } else if ((dhdp->sssr_reg_info.length >
                OFFSETOF(sssr_reg_info_v1_t, dig_mem_info)) &&
               dhdp->sssr_reg_info.dig_mem_info.dig_sr_size) {
        dig_buf_size = dhdp->sssr_reg_info.dig_mem_info.dig_sr_size;
    }

    if (dhdp->sssr_dig_buf_before &&
        (dhdp->sssr_dump_mode == SSSR_DUMP_MODE_SSSR)) {
        ret = dhd_export_debug_data((char *)dhdp->sssr_dig_buf_before, NULL,
                                    user_buf, dig_buf_size, &pos);
    }
    return ret;
}

int dhd_sssr_dump_dig_buf_after(void *dev, const void *user_buf, uint32 len)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd_info =
        *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)dev);
#else
        dhd_info_t *dhd_info =
            *(dhd_info_t **)netdev_priv((struct net_device *)dev);
#endif
    dhd_pub_t *dhdp = &dhd_info->pub;
    int pos = 0, ret = BCME_ERROR;
    uint dig_buf_size = 0;

    if (dhdp->sssr_reg_info.vasip_regs.vasip_sr_size) {
        dig_buf_size = dhdp->sssr_reg_info.vasip_regs.vasip_sr_size;
    } else if ((dhdp->sssr_reg_info.length >
                OFFSETOF(sssr_reg_info_v1_t, dig_mem_info)) &&
               dhdp->sssr_reg_info.dig_mem_info.dig_sr_size) {
        dig_buf_size = dhdp->sssr_reg_info.dig_mem_info.dig_sr_size;
    }

    if (dhdp->sssr_dig_buf_after) {
        ret = dhd_export_debug_data((char *)dhdp->sssr_dig_buf_after, NULL,
                                    user_buf, dig_buf_size, &pos);
    }
    return ret;
}

int dhd_sssr_dump_d11_buf_before(void *dev, const void *user_buf, uint32 len,
                                 int core)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd_info =
        *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)dev);
#else
        dhd_info_t *dhd_info =
            *(dhd_info_t **)netdev_priv((struct net_device *)dev);
#endif
    dhd_pub_t *dhdp = &dhd_info->pub;
    int pos = 0, ret = BCME_ERROR;

    if (dhdp->sssr_d11_before[core] && dhdp->sssr_d11_outofreset[core] &&
        (dhdp->sssr_dump_mode == SSSR_DUMP_MODE_SSSR)) {
        ret = dhd_export_debug_data((char *)dhdp->sssr_d11_before[core], NULL,
                                    user_buf, len, &pos);
    }
    return ret;
}

int dhd_sssr_dump_d11_buf_after(void *dev, const void *user_buf, uint32 len,
                                int core)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd_info =
        *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)dev);
#else
        dhd_info_t *dhd_info =
            *(dhd_info_t **)netdev_priv((struct net_device *)dev);
#endif
    dhd_pub_t *dhdp = &dhd_info->pub;
    int pos = 0, ret = BCME_ERROR;

    if (dhdp->sssr_d11_after[core] && dhdp->sssr_d11_outofreset[core]) {
        ret = dhd_export_debug_data((char *)dhdp->sssr_d11_after[core], NULL,
                                    user_buf, len, &pos);
    }
    return ret;
}

static void dhd_sssr_dump_to_file(dhd_info_t *dhdinfo)
{
    dhd_info_t *dhd = dhdinfo;
    dhd_pub_t *dhdp;
    int i;
    char before_sr_dump[128];
    char after_sr_dump[128];
    unsigned long flags = 0;
    uint dig_buf_size = 0;

    DHD_ERROR(("%s: ENTER \n", __FUNCTION__));

    if (!dhd) {
        DHD_ERROR(("%s: dhd is NULL\n", __FUNCTION__));
        return;
    }

    dhdp = &dhd->pub;

    DHD_GENERAL_LOCK(dhdp, flags);
    DHD_BUS_BUSY_SET_IN_SSSRDUMP(dhdp);
    if (DHD_BUS_CHECK_DOWN_OR_DOWN_IN_PROGRESS(dhdp)) {
        DHD_GENERAL_UNLOCK(dhdp, flags);
        DHD_ERROR(
            ("%s: bus is down! can't collect sssr dump. \n", __FUNCTION__));
        goto exit;
    }
    DHD_GENERAL_UNLOCK(dhdp, flags);

    for (i = 0; i < MAX_NUM_D11CORES; i++) {
        /* Init file name */
        memset(before_sr_dump, 0, sizeof(before_sr_dump));
        memset(after_sr_dump, 0, sizeof(after_sr_dump));

        snprintf(before_sr_dump, sizeof(before_sr_dump), "%s_%d_%s",
                 "sssr_dump_core", i, "before_SR");
        snprintf(after_sr_dump, sizeof(after_sr_dump), "%s_%d_%s",
                 "sssr_dump_core", i, "after_SR");

        if (dhdp->sssr_d11_before[i] && dhdp->sssr_d11_outofreset[i] &&
            (dhdp->sssr_dump_mode == SSSR_DUMP_MODE_SSSR)) {
            if (write_dump_to_file(dhdp, (uint8 *)dhdp->sssr_d11_before[i],
                                   dhdp->sssr_reg_info.mac_regs[i].sr_size,
                                   before_sr_dump)) {
                DHD_ERROR(
                    ("%s: writing SSSR MAIN dump before to the file failed\n",
                     __FUNCTION__));
            }
        }
        if (dhdp->sssr_d11_after[i] && dhdp->sssr_d11_outofreset[i]) {
            if (write_dump_to_file(dhdp, (uint8 *)dhdp->sssr_d11_after[i],
                                   dhdp->sssr_reg_info.mac_regs[i].sr_size,
                                   after_sr_dump)) {
                DHD_ERROR(
                    ("%s: writing SSSR AUX dump after to the file failed\n",
                     __FUNCTION__));
            }
        }
    }

    if (dhdp->sssr_reg_info.vasip_regs.vasip_sr_size) {
        dig_buf_size = dhdp->sssr_reg_info.vasip_regs.vasip_sr_size;
    } else if ((dhdp->sssr_reg_info.length >
                OFFSETOF(sssr_reg_info_v1_t, dig_mem_info)) &&
               dhdp->sssr_reg_info.dig_mem_info.dig_sr_size) {
        dig_buf_size = dhdp->sssr_reg_info.dig_mem_info.dig_sr_size;
    }

    if (dhdp->sssr_dig_buf_before &&
        (dhdp->sssr_dump_mode == SSSR_DUMP_MODE_SSSR)) {
        if (write_dump_to_file(dhdp, (uint8 *)dhdp->sssr_dig_buf_before,
                               dig_buf_size, "sssr_dump_dig_before_SR")) {
            DHD_ERROR(("%s: writing SSSR Dig dump before to the file failed\n",
                       __FUNCTION__));
        }
    }

    if (dhdp->sssr_dig_buf_after) {
        if (write_dump_to_file(dhdp, (uint8 *)dhdp->sssr_dig_buf_after,
                               dig_buf_size, "sssr_dump_dig_after_SR")) {
            DHD_ERROR(
                ("%s: writing SSSR Dig VASIP dump after to the file failed\n",
                 __FUNCTION__));
        }
    }

exit:
    DHD_GENERAL_LOCK(dhdp, flags);
    DHD_BUS_BUSY_CLEAR_IN_SSSRDUMP(dhdp);
    dhd_os_busbusy_wake(dhdp);
    DHD_GENERAL_UNLOCK(dhdp, flags);
}

void dhd_write_sssr_dump(dhd_pub_t *dhdp, uint32 dump_mode)
{
    dhdp->sssr_dump_mode = dump_mode;

    /*
     * If kernel does not have file write access enabled
     * then skip writing dumps to files.
     * The dumps will be pushed to HAL layer which will
     * write into files
     */
#if !defined(DHD_DUMP_FILE_WRITE_FROM_KERNEL)
    return;
#endif /* !DHD_DUMP_FILE_WRITE_FROM_KERNEL */

    /*
     * dhd_mem_dump -> dhd_sssr_dump -> dhd_write_sssr_dump
     * Without workqueue -
     * DUMP_TYPE_DONGLE_INIT_FAILURE/DUMP_TYPE_DUE_TO_BT/DUMP_TYPE_SMMU_FAULT
     * : These are called in own handler, not in the interrupt context
     * With workqueue - all other DUMP_TYPEs : dhd_mem_dump is called in
     * workqueue Thus, it doesn't neeed to dump SSSR in workqueue
     */
    DHD_ERROR(("%s: writing sssr dump to file... \n", __FUNCTION__));
    dhd_sssr_dump_to_file(dhdp->info);
}
#endif /* DHD_SSSR_DUMP */

#ifdef DHD_LOG_DUMP
static void dhd_log_dump(void *handle, void *event_info, u8 event)
{
    dhd_info_t *dhd = handle;
    log_dump_type_t *type = (log_dump_type_t *)event_info;

    if (!dhd || !type) {
        DHD_ERROR(("%s: dhd is NULL\n", __FUNCTION__));
        return;
    }

#ifdef WL_CFG80211
    /* flush the fw side logs */
    wl_flush_fw_log_buffer(dhd_linux_get_primary_netdev(&dhd->pub),
                           FW_LOGSET_MASK_ALL);
#endif // endif
    /* there are currently 3 possible contexts from which
     * log dump can be scheduled -
     * 1.TRAP 2.supplicant DEBUG_DUMP pvt driver command
     * 3.HEALTH CHECK event
     * The concise debug info buffer is a shared resource
     * and in case a trap is one of the contexts then both the
     * scheduled work queues need to run because trap data is
     * essential for debugging. Hence a mutex lock is acquired
     * before calling do_dhd_log_dump().
     */
    DHD_ERROR(("%s: calling log dump.. \n", __FUNCTION__));
    dhd_os_logdump_lock(&dhd->pub);
    DHD_OS_WAKE_LOCK(&dhd->pub);
    if (do_dhd_log_dump(&dhd->pub, type) != BCME_OK) {
        DHD_ERROR(
            ("%s: writing debug dump to the file failed\n", __FUNCTION__));
    }
    DHD_OS_WAKE_UNLOCK(&dhd->pub);
    dhd_os_logdump_unlock(&dhd->pub);
}

void dhd_schedule_log_dump(dhd_pub_t *dhdp, void *type)
{
    DHD_ERROR(("%s: scheduling log dump.. \n", __FUNCTION__));
    dhd_deferred_schedule_work(dhdp->info->dhd_deferred_wq, type,
                               DHD_WQ_WORK_DHD_LOG_DUMP, dhd_log_dump,
                               DHD_WQ_WORK_PRIORITY_HIGH);
}

static void dhd_print_buf_addr(dhd_pub_t *dhdp, char *name, void *buf,
                               unsigned int size)
{
#ifdef DHD_FW_COREDUMP
    if ((dhdp->memdump_enabled == DUMP_MEMONLY) ||
        (dhdp->memdump_enabled == DUMP_MEMFILE_BUGON) ||
        (dhdp->memdump_type == DUMP_TYPE_SMMU_FAULT))
#else
        if (dhdp->memdump_type == DUMP_TYPE_SMMU_FAULT)
#endif
    {
#if defined(CONFIG_ARM64)
        DHD_ERROR(("-------- %s: buf(va)=%llx, buf(pa)=%llx, bufsize=%d\n",
                   name, (uint64)buf, (uint64)__virt_to_phys((ulong)buf),
                   size));
#elif defined(__ARM_ARCH_7A__)
            DHD_ERROR(("-------- %s: buf(va)=%x, buf(pa)=%x, bufsize=%d\n",
                       name, (uint32)buf, (uint32)__virt_to_phys((ulong)buf),
                       size));
#endif /* __ARM_ARCH_7A__ */
    }
}

static void dhd_log_dump_buf_addr(dhd_pub_t *dhdp, log_dump_type_t *type)
{
    int i;
    unsigned long wr_size = 0;
    struct dhd_log_dump_buf *dld_buf = &g_dld_buf[0];
    size_t log_size = 0;
    char buf_name[DHD_PRINT_BUF_NAME_LEN];
    dhd_dbg_ring_t *ring = NULL;

    BCM_REFERENCE(ring);

    for (i = 0; i < DLD_BUFFER_NUM; i++) {
        dld_buf = &g_dld_buf[i];
        log_size = (unsigned long)dld_buf->max - (unsigned long)dld_buf->buffer;
        if (dld_buf->wraparound) {
            wr_size = log_size;
        } else {
            wr_size =
                (unsigned long)dld_buf->present - (unsigned long)dld_buf->front;
        }
        scnprintf(buf_name, sizeof(buf_name), "dlb_buf[%d]", i);
        dhd_print_buf_addr(dhdp, buf_name, dld_buf, dld_buf_size[i]);
        scnprintf(buf_name, sizeof(buf_name), "dlb_buf[%d] buffer", i);
        dhd_print_buf_addr(dhdp, buf_name, dld_buf->buffer, wr_size);
        scnprintf(buf_name, sizeof(buf_name), "dlb_buf[%d] present", i);
        dhd_print_buf_addr(dhdp, buf_name, dld_buf->present, wr_size);
        scnprintf(buf_name, sizeof(buf_name), "dlb_buf[%d] front", i);
        dhd_print_buf_addr(dhdp, buf_name, dld_buf->front, wr_size);
    }

#ifdef EWP_ECNTRS_LOGGING
    /* periodic flushing of ecounters is NOT supported */
    if (*type == DLD_BUF_TYPE_ALL && logdump_ecntr_enable &&
        dhdp->ecntr_dbg_ring) {
        ring = (dhd_dbg_ring_t *)dhdp->ecntr_dbg_ring;
        dhd_print_buf_addr(dhdp, "ecntr_dbg_ring", ring,
                           LOG_DUMP_ECNTRS_MAX_BUFSIZE);
        dhd_print_buf_addr(dhdp, "ecntr_dbg_ring ring_buf", ring->ring_buf,
                           LOG_DUMP_ECNTRS_MAX_BUFSIZE);
    }
#endif /* EWP_ECNTRS_LOGGING */

#ifdef DHD_STATUS_LOGGING
    if (dhdp->statlog) {
        dhd_print_buf_addr(dhdp, "statlog_logbuf", dhd_statlog_get_logbuf(dhdp),
                           dhd_statlog_get_logbuf_len(dhdp));
    }
#endif /* DHD_STATUS_LOGGING */

#ifdef EWP_RTT_LOGGING
    /* periodic flushing of ecounters is NOT supported */
    if (*type == DLD_BUF_TYPE_ALL && logdump_rtt_enable && dhdp->rtt_dbg_ring) {
        ring = (dhd_dbg_ring_t *)dhdp->rtt_dbg_ring;
        dhd_print_buf_addr(dhdp, "rtt_dbg_ring", ring,
                           LOG_DUMP_RTT_MAX_BUFSIZE);
        dhd_print_buf_addr(dhdp, "rtt_dbg_ring ring_buf", ring->ring_buf,
                           LOG_DUMP_RTT_MAX_BUFSIZE);
    }
#endif /* EWP_RTT_LOGGING */

#ifdef BCMPCIE
    if (dhdp->dongle_trap_occured && dhdp->extended_trap_data) {
        dhd_print_buf_addr(dhdp, "extended_trap_data", dhdp->extended_trap_data,
                           BCMPCIE_EXT_TRAP_DATA_MAXLEN);
    }
#endif /* BCMPCIE */

#if defined(DHD_FW_COREDUMP) && defined(DNGL_EVENT_SUPPORT)
    /* if health check event was received */
    if (dhdp->memdump_type == DUMP_TYPE_DONGLE_HOST_EVENT) {
        dhd_print_buf_addr(dhdp, "health_chk_event_data",
                           dhdp->health_chk_event_data, HEALTH_CHK_BUF_SIZE);
    }
#endif /* DHD_FW_COREDUMP && DNGL_EVENT_SUPPORT */

    /* append the concise debug information */
    if (dhdp->concise_dbg_buf) {
        dhd_print_buf_addr(dhdp, "concise_dbg_buf", dhdp->concise_dbg_buf,
                           CONCISE_DUMP_BUFLEN);
    }
}

#ifdef DHD_SSSR_DUMP
int dhdpcie_sssr_dump_get_before_after_len(dhd_pub_t *dhd, uint32 *arr_len)
{
    int i = 0;

    DHD_ERROR(("%s\n", __FUNCTION__));

    /* core 0 */
    i = 0;
    if (dhd->sssr_d11_before[i] && dhd->sssr_d11_outofreset[i] &&
        (dhd->sssr_dump_mode == SSSR_DUMP_MODE_SSSR)) {
        arr_len[SSSR_C0_D11_BEFORE] = (dhd->sssr_reg_info.mac_regs[i].sr_size);
        DHD_ERROR(("%s: arr_len[SSSR_C0_D11_BEFORE] : %d\n", __FUNCTION__,
                   arr_len[SSSR_C0_D11_BEFORE]));
#ifdef DHD_LOG_DUMP
        dhd_print_buf_addr(dhd, "SSSR_C0_D11_BEFORE", dhd->sssr_d11_before[i],
                           arr_len[SSSR_C0_D11_BEFORE]);
#endif /* DHD_LOG_DUMP */
    }
    if (dhd->sssr_d11_after[i] && dhd->sssr_d11_outofreset[i]) {
        arr_len[SSSR_C0_D11_AFTER] = (dhd->sssr_reg_info.mac_regs[i].sr_size);
        DHD_ERROR(("%s: arr_len[SSSR_C0_D11_AFTER] : %d\n", __FUNCTION__,
                   arr_len[SSSR_C0_D11_AFTER]));
#ifdef DHD_LOG_DUMP
        dhd_print_buf_addr(dhd, "SSSR_C0_D11_AFTER", dhd->sssr_d11_after[i],
                           arr_len[SSSR_C0_D11_AFTER]);
#endif /* DHD_LOG_DUMP */
    }

    /* core 1 */
    i = 1;
    if (dhd->sssr_d11_before[i] && dhd->sssr_d11_outofreset[i] &&
        (dhd->sssr_dump_mode == SSSR_DUMP_MODE_SSSR)) {
        arr_len[SSSR_C1_D11_BEFORE] = (dhd->sssr_reg_info.mac_regs[i].sr_size);
        DHD_ERROR(("%s: arr_len[SSSR_C1_D11_BEFORE] : %d\n", __FUNCTION__,
                   arr_len[SSSR_C1_D11_BEFORE]));
#ifdef DHD_LOG_DUMP
        dhd_print_buf_addr(dhd, "SSSR_C1_D11_BEFORE", dhd->sssr_d11_before[i],
                           arr_len[SSSR_C1_D11_BEFORE]);
#endif /* DHD_LOG_DUMP */
    }
    if (dhd->sssr_d11_after[i] && dhd->sssr_d11_outofreset[i]) {
        arr_len[SSSR_C1_D11_AFTER] = (dhd->sssr_reg_info.mac_regs[i].sr_size);
        DHD_ERROR(("%s: arr_len[SSSR_C1_D11_AFTER] : %d\n", __FUNCTION__,
                   arr_len[SSSR_C1_D11_AFTER]));
#ifdef DHD_LOG_DUMP
        dhd_print_buf_addr(dhd, "SSSR_C1_D11_AFTER", dhd->sssr_d11_after[i],
                           arr_len[SSSR_C1_D11_AFTER]);
#endif /* DHD_LOG_DUMP */
    }

    if (dhd->sssr_reg_info.vasip_regs.vasip_sr_size) {
        arr_len[SSSR_DIG_BEFORE] =
            (dhd->sssr_reg_info.vasip_regs.vasip_sr_size);
        arr_len[SSSR_DIG_AFTER] = (dhd->sssr_reg_info.vasip_regs.vasip_sr_size);
        DHD_ERROR(("%s: arr_len[SSSR_DIG_BEFORE] : %d\n", __FUNCTION__,
                   arr_len[SSSR_DIG_BEFORE]));
        DHD_ERROR(("%s: arr_len[SSSR_DIG_AFTER] : %d\n", __FUNCTION__,
                   arr_len[SSSR_DIG_AFTER]));
#ifdef DHD_LOG_DUMP
        if (dhd->sssr_dig_buf_before) {
            dhd_print_buf_addr(dhd, "SSSR_DIG_BEFORE", dhd->sssr_dig_buf_before,
                               arr_len[SSSR_DIG_BEFORE]);
        }
        if (dhd->sssr_dig_buf_after) {
            dhd_print_buf_addr(dhd, "SSSR_DIG_AFTER", dhd->sssr_dig_buf_after,
                               arr_len[SSSR_DIG_AFTER]);
        }
#endif /* DHD_LOG_DUMP */
    } else if ((dhd->sssr_reg_info.length >
                OFFSETOF(sssr_reg_info_v1_t, dig_mem_info)) &&
               dhd->sssr_reg_info.dig_mem_info.dig_sr_addr) {
        arr_len[SSSR_DIG_BEFORE] =
            (dhd->sssr_reg_info.dig_mem_info.dig_sr_size);
        arr_len[SSSR_DIG_AFTER] = (dhd->sssr_reg_info.dig_mem_info.dig_sr_size);
        DHD_ERROR(("%s: arr_len[SSSR_DIG_BEFORE] : %d\n", __FUNCTION__,
                   arr_len[SSSR_DIG_BEFORE]));
        DHD_ERROR(("%s: arr_len[SSSR_DIG_AFTER] : %d\n", __FUNCTION__,
                   arr_len[SSSR_DIG_AFTER]));
#ifdef DHD_LOG_DUMP
        if (dhd->sssr_dig_buf_before) {
            dhd_print_buf_addr(dhd, "SSSR_DIG_BEFORE", dhd->sssr_dig_buf_before,
                               arr_len[SSSR_DIG_BEFORE]);
        }
        if (dhd->sssr_dig_buf_after) {
            dhd_print_buf_addr(dhd, "SSSR_DIG_AFTER", dhd->sssr_dig_buf_after,
                               arr_len[SSSR_DIG_AFTER]);
        }
#endif /* DHD_LOG_DUMP */
    }
    return BCME_OK;
}

void dhd_nla_put_sssr_dump_len(void *ndev, uint32 *arr_len)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd_info =
        *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)ndev);
#else
    dhd_info_t *dhd_info =
        *(dhd_info_t **)netdev_priv((struct net_device *)ndev);
#endif
    dhd_pub_t *dhdp = &dhd_info->pub;

    if (dhdp->sssr_dump_collected) {
        dhdpcie_sssr_dump_get_before_after_len(dhdp, arr_len);
    }
}
#endif /* DHD_SSSR_DUMP */

uint32 dhd_get_time_str_len()
{
    char *ts = NULL, time_str[128];

    ts = dhd_log_dump_get_timestamp();
    snprintf(time_str, sizeof(time_str),
             "\n\n ========== LOG DUMP TAKEN AT : %s =========\n", ts);
    return strlen(time_str);
}

#if defined(BCMPCIE)
uint32 dhd_get_ext_trap_len(void *ndev, dhd_pub_t *dhdp)
{
    int length = 0;
    log_dump_section_hdr_t sec_hdr;
    dhd_info_t *dhd_info;

    if (ndev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)ndev);
#else
        dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)ndev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return length;
    }

    if (dhdp->extended_trap_data) {
        length = (strlen(EXT_TRAP_LOG_HDR) + sizeof(sec_hdr) +
                  BCMPCIE_EXT_TRAP_DATA_MAXLEN);
    }
    return length;
}
#endif

#if defined(DHD_FW_COREDUMP) && defined(DNGL_EVENT_SUPPORT)
uint32 dhd_get_health_chk_len(void *ndev, dhd_pub_t *dhdp)
{
    int length = 0;
    log_dump_section_hdr_t sec_hdr;
    dhd_info_t *dhd_info;

    if (ndev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)ndev);
#else
        dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)ndev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return length;
    }

    if (dhdp->memdump_type == DUMP_TYPE_DONGLE_HOST_EVENT) {
        length = (strlen(HEALTH_CHK_LOG_HDR) + sizeof(sec_hdr) +
                  HEALTH_CHK_BUF_SIZE);
    }
    return length;
}
#endif /* DHD_FW_COREDUMP && DNGL_EVENT_SUPPORT */

uint32 dhd_get_dhd_dump_len(void *ndev, dhd_pub_t *dhdp)
{
    int length = 0;
    log_dump_section_hdr_t sec_hdr;
    dhd_info_t *dhd_info;
    uint32 remain_len = 0;

    if (ndev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)ndev);
#else
            dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)ndev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return length;
    }

    if (dhdp->concise_dbg_buf) {
        remain_len =
            dhd_dump(dhdp, (char *)dhdp->concise_dbg_buf, CONCISE_DUMP_BUFLEN);
        if (remain_len <= 0) {
            DHD_ERROR(
                ("%s: error getting concise debug info !\n", __FUNCTION__));
            return length;
        }
        length = (strlen(DHD_DUMP_LOG_HDR) + sizeof(sec_hdr) +
                  (CONCISE_DUMP_BUFLEN - remain_len));
    }
    return length;
}

uint32 dhd_get_cookie_log_len(void *ndev, dhd_pub_t *dhdp)
{
    int length = 0;
    dhd_info_t *dhd_info;

    if (ndev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)ndev);
#else
            dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)ndev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return length;
    }

    if (dhdp->logdump_cookie && dhd_logdump_cookie_count(dhdp) > 0) {
        length = dhd_log_dump_cookie_len(dhdp);
    }
    return length;
}

#ifdef DHD_DUMP_PCIE_RINGS
uint32 dhd_get_flowring_len(void *ndev, dhd_pub_t *dhdp)
{
    int length = 0;
    log_dump_section_hdr_t sec_hdr;
    dhd_info_t *dhd_info;
    uint16 h2d_flowrings_total;
    uint32 remain_len = 0;

    if (ndev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)ndev);
#else
        dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)ndev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return length;
    }

    if (dhdp->concise_dbg_buf) {
        remain_len =
            dhd_dump(dhdp, (char *)dhdp->concise_dbg_buf, CONCISE_DUMP_BUFLEN);
        if (remain_len <= 0) {
            DHD_ERROR(
                ("%s: error getting concise debug info !\n", __FUNCTION__));
            return length;
        }
    }

    length += strlen(FLOWRING_DUMP_HDR);
    length += CONCISE_DUMP_BUFLEN - remain_len;
    length += sizeof(sec_hdr);
    h2d_flowrings_total = dhd_get_max_flow_rings(dhdp);
    length += ((H2DRING_TXPOST_ITEMSIZE * H2DRING_TXPOST_MAX_ITEM *
                h2d_flowrings_total) +
               (D2HRING_TXCMPLT_ITEMSIZE * D2HRING_TXCMPLT_MAX_ITEM) +
               (H2DRING_RXPOST_ITEMSIZE * H2DRING_RXPOST_MAX_ITEM) +
               (D2HRING_RXCMPLT_ITEMSIZE * D2HRING_RXCMPLT_MAX_ITEM) +
               (H2DRING_CTRL_SUB_ITEMSIZE * H2DRING_CTRL_SUB_MAX_ITEM) +
               (D2HRING_CTRL_CMPLT_ITEMSIZE * D2HRING_CTRL_CMPLT_MAX_ITEM)
#ifdef EWP_EDL
               + (D2HRING_EDL_HDR_SIZE * D2HRING_EDL_MAX_ITEM));
#else
               +
               (H2DRING_INFO_BUFPOST_ITEMSIZE * H2DRING_DYNAMIC_INFO_MAX_ITEM) +
               (D2HRING_INFO_BUFCMPLT_ITEMSIZE *
                D2HRING_DYNAMIC_INFO_MAX_ITEM));
#endif /* EWP_EDL */
    return length;
}
#endif /* DHD_DUMP_PCIE_RINGS */

#ifdef EWP_ECNTRS_LOGGING
uint32 dhd_get_ecntrs_len(void *ndev, dhd_pub_t *dhdp)
{
    dhd_info_t *dhd_info;
    log_dump_section_hdr_t sec_hdr;
    int length = 0;
    dhd_dbg_ring_t *ring;

    if (ndev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)ndev);
#else
        dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)ndev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return length;
    }

    if (logdump_ecntr_enable && dhdp->ecntr_dbg_ring) {
        ring = (dhd_dbg_ring_t *)dhdp->ecntr_dbg_ring;
        length = ring->ring_size + strlen(ECNTRS_LOG_HDR) + sizeof(sec_hdr);
    }
    return length;
}
#endif /* EWP_ECNTRS_LOGGING */

#ifdef EWP_RTT_LOGGING
uint32 dhd_get_rtt_len(void *ndev, dhd_pub_t *dhdp)
{
    dhd_info_t *dhd_info;
    log_dump_section_hdr_t sec_hdr;
    int length = 0;
    dhd_dbg_ring_t *ring;

    if (ndev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)ndev);
#else
        dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)ndev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return length;
    }

    if (logdump_rtt_enable && dhdp->rtt_dbg_ring) {
        ring = (dhd_dbg_ring_t *)dhdp->rtt_dbg_ring;
        length = ring->ring_size + strlen(RTT_LOG_HDR) + sizeof(sec_hdr);
    }
    return length;
}
#endif /* EWP_RTT_LOGGING */

int dhd_get_dld_log_dump(void *dev, dhd_pub_t *dhdp, const void *user_buf,
                         void *fp, uint32 len, int type, void *pos)
{
    int ret = BCME_OK;
    struct dhd_log_dump_buf *dld_buf;
    log_dump_section_hdr_t sec_hdr;
    dhd_info_t *dhd_info;

    dld_buf = &g_dld_buf[type];

    if (dev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)dev);
#else
            dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)dev);
#endif
        dhdp = &dhd_info->pub;
    } else if (!dhdp) {
        return BCME_ERROR;
    }

    DHD_ERROR(("%s: ENTER \n", __FUNCTION__));

    dhd_init_sec_hdr(&sec_hdr);

    /* write the section header first */
    ret = dhd_export_debug_data(dld_hdrs[type].hdr_str, fp, user_buf,
                                strlen(dld_hdrs[type].hdr_str), pos);
    if (ret < 0) {
        goto exit;
    }
    len -= (uint32)strlen(dld_hdrs[type].hdr_str);
    len -= (uint32)sizeof(sec_hdr);
    sec_hdr.type = dld_hdrs[type].sec_type;
    sec_hdr.length = len;
    ret = dhd_export_debug_data((char *)&sec_hdr, fp, user_buf, sizeof(sec_hdr),
                                pos);
    if (ret < 0) {
        goto exit;
    }
    ret = dhd_export_debug_data(dld_buf->buffer, fp, user_buf, len, pos);
    if (ret < 0) {
        goto exit;
    }

exit:
    return ret;
}

static int dhd_log_flush(dhd_pub_t *dhdp, log_dump_type_t *type)
{
    unsigned long flags = 0;
#ifdef EWP_EDL
    int i = 0;
#endif /* EWP_EDL */
    dhd_info_t *dhd_info = NULL;

    /* if dhdp is null, its extremely unlikely that log dump will be scheduled
     * so not freeing 'type' here is ok, even if we want to free 'type'
     * we cannot do so, since 'dhdp->osh' is unavailable
     * as dhdp is null
     */
    if (!dhdp || !type) {
        if (dhdp) {
            DHD_GENERAL_LOCK(dhdp, flags);
            DHD_BUS_BUSY_CLEAR_IN_LOGDUMP(dhdp);
            dhd_os_busbusy_wake(dhdp);
            DHD_GENERAL_UNLOCK(dhdp, flags);
        }
        return BCME_ERROR;
    }

    dhd_info = (dhd_info_t *)dhdp->info;
    /* in case of trap get preserve logs from ETD */
#if defined(BCMPCIE) && defined(EWP_ETD_PRSRV_LOGS)
    if (dhdp->dongle_trap_occured && dhdp->extended_trap_data) {
        dhdpcie_get_etd_preserve_logs(dhdp, (uint8 *)dhdp->extended_trap_data,
                                      &dhd_info->event_data);
    }
#endif /* BCMPCIE */

    /* flush the event work items to get any fw events/logs
     * flush_work is a blocking call
     */
#ifdef SHOW_LOGTRACE
#ifdef EWP_EDL
    if (dhd_info->pub.dongle_edl_support) {
        /* wait till existing edl items are processed */
        dhd_flush_logtrace_process(dhd_info);
        /* dhd_flush_logtrace_process will ensure the work items in the ring
         * (EDL ring) from rd to wr are processed. But if wr had
         * wrapped around, only the work items from rd to ring-end are
         * processed. So to ensure that the work items at the beginning of ring
         * are also processed in the wrap around case, call it twice
         */
        for (i = 0; i < 0x2; i++) {
            /* blocks till the edl items are processed */
            dhd_flush_logtrace_process(dhd_info);
        }
    } else {
        dhd_flush_logtrace_process(dhd_info);
    }
#else
    dhd_flush_logtrace_process(dhd_info);
#endif /* EWP_EDL */
#endif /* SHOW_LOGTRACE */

    return BCME_OK;
}

int dhd_get_debug_dump_file_name(void *dev, dhd_pub_t *dhdp, char *dump_path,
                                 int size)
{
    dhd_info_t *dhd_info;

    if (dev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)dev);
#else
            dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)dev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return BCME_ERROR;
    }

    memset(dump_path, 0, size);

    switch (dhdp->debug_dump_subcmd) {
        case CMD_UNWANTED:
            snprintf(dump_path, size, "%s",
                     DHD_COMMON_DUMP_PATH DHD_DEBUG_DUMP_TYPE
                         DHD_DUMP_SUBSTR_UNWANTED);
            break;
        case CMD_DISCONNECTED:
            snprintf(dump_path, size, "%s",
                     DHD_COMMON_DUMP_PATH DHD_DEBUG_DUMP_TYPE
                         DHD_DUMP_SUBSTR_DISCONNECTED);
            break;
        default:
            snprintf(dump_path, size, "%s",
                     DHD_COMMON_DUMP_PATH DHD_DEBUG_DUMP_TYPE);
    }

    if (!dhdp->logdump_periodic_flush) {
        get_debug_dump_time(dhdp->debug_dump_time_str);
        snprintf(dump_path + strlen(dump_path), size - strlen(dump_path), "_%s",
                 dhdp->debug_dump_time_str);
    }
    return BCME_OK;
}

uint32 dhd_get_dld_len(int log_type)
{
    unsigned long wr_size = 0;
    unsigned long buf_size = 0;
    unsigned long flags = 0;
    struct dhd_log_dump_buf *dld_buf;
    log_dump_section_hdr_t sec_hdr;

    /* calculate the length of the log */
    dld_buf = &g_dld_buf[log_type];
    buf_size = (unsigned long)dld_buf->max - (unsigned long)dld_buf->buffer;

    if (dld_buf->wraparound) {
        wr_size = buf_size;
    } else {
        /* need to hold the lock before accessing 'present' and 'remain' ptrs */
        spin_lock_irqsave(&dld_buf->lock, flags);
        wr_size =
            (unsigned long)dld_buf->present - (unsigned long)dld_buf->front;
        spin_unlock_irqrestore(&dld_buf->lock, flags);
    }
    return (wr_size + sizeof(sec_hdr) + strlen(dld_hdrs[log_type].hdr_str));
}

static void dhd_get_time_str(dhd_pub_t *dhdp, char *time_str, int size)
{
    char *ts = NULL;
    memset(time_str, 0, size);
    ts = dhd_log_dump_get_timestamp();
    snprintf(time_str, size,
             "\n\n ========== LOG DUMP TAKEN AT : %s =========\n", ts);
}

int dhd_print_time_str(const void *user_buf, void *fp, uint32 len, void *pos)
{
    char *ts = NULL;
    int ret = 0;
    char time_str[128];

    memset_s(time_str, sizeof(time_str), 0, sizeof(time_str));
    ts = dhd_log_dump_get_timestamp();
    snprintf(time_str, sizeof(time_str),
             "\n\n ========== LOG DUMP TAKEN AT : %s =========\n", ts);

    /* write the timestamp hdr to the file first */
    ret = dhd_export_debug_data(time_str, fp, user_buf, strlen(time_str), pos);
    if (ret < 0) {
        DHD_ERROR(("write file error, err = %d\n", ret));
    }
    return ret;
}

#if defined(DHD_FW_COREDUMP) && defined(DNGL_EVENT_SUPPORT)
int dhd_print_health_chk_data(void *dev, dhd_pub_t *dhdp, const void *user_buf,
                              void *fp, uint32 len, void *pos)
{
    int ret = BCME_OK;
    log_dump_section_hdr_t sec_hdr;
    dhd_info_t *dhd_info;

    if (dev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)dev);
#else
        dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)dev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return BCME_ERROR;
    }

    dhd_init_sec_hdr(&sec_hdr);

    if (dhdp->memdump_type == DUMP_TYPE_DONGLE_HOST_EVENT) {
        /* write the section header first */
        ret = dhd_export_debug_data(HEALTH_CHK_LOG_HDR, fp, user_buf,
                                    strlen(HEALTH_CHK_LOG_HDR), pos);
        if (ret < 0) {
            goto exit;
        }

        len -= (uint32)strlen(HEALTH_CHK_LOG_HDR);
        sec_hdr.type = LOG_DUMP_SECTION_HEALTH_CHK;
        sec_hdr.length = HEALTH_CHK_BUF_SIZE;
        ret = dhd_export_debug_data((char *)&sec_hdr, fp, user_buf,
                                    sizeof(sec_hdr), pos);
        if (ret < 0) {
            goto exit;
        }

        len -= (uint32)sizeof(sec_hdr);
        /* write the log */
        ret = dhd_export_debug_data((char *)dhdp->health_chk_event_data, fp,
                                    user_buf, len, pos);
        if (ret < 0) {
            goto exit;
        }
    }
exit:
    return ret;
}
#endif /* DHD_FW_COREDUMP && DNGL_EVENT_SUPPORT */

#ifdef BCMPCIE
int dhd_print_ext_trap_data(void *dev, dhd_pub_t *dhdp, const void *user_buf,
                            void *fp, uint32 len, void *pos)
{
    int ret = BCME_OK;
    log_dump_section_hdr_t sec_hdr;
    dhd_info_t *dhd_info;

    if (dev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)dev);
#else
        dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)dev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return BCME_ERROR;
    }

    dhd_init_sec_hdr(&sec_hdr);

    /* append extended trap data to the file in case of traps */
    if (dhdp->dongle_trap_occured && dhdp->extended_trap_data) {
        /* write the section header first */
        ret = dhd_export_debug_data(EXT_TRAP_LOG_HDR, fp, user_buf,
                                    strlen(EXT_TRAP_LOG_HDR), pos);
        if (ret < 0) {
            goto exit;
        }

        len -= (uint32)strlen(EXT_TRAP_LOG_HDR);
        sec_hdr.type = LOG_DUMP_SECTION_EXT_TRAP;
        sec_hdr.length = BCMPCIE_EXT_TRAP_DATA_MAXLEN;
        ret = dhd_export_debug_data((uint8 *)&sec_hdr, fp, user_buf,
                                    sizeof(sec_hdr), pos);
        if (ret < 0) {
            goto exit;
        }

        len -= (uint32)sizeof(sec_hdr);
        /* write the log */
        ret = dhd_export_debug_data((uint8 *)dhdp->extended_trap_data, fp,
                                    user_buf, len, pos);
        if (ret < 0) {
            goto exit;
        }
    }
exit:
    return ret;
}
#endif /* BCMPCIE */

int dhd_print_dump_data(void *dev, dhd_pub_t *dhdp, const void *user_buf,
                        void *fp, uint32 len, void *pos)
{
    int ret = BCME_OK;
    log_dump_section_hdr_t sec_hdr;
    dhd_info_t *dhd_info;

    if (dev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)dev);
#else
            dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)dev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return BCME_ERROR;
    }

    dhd_init_sec_hdr(&sec_hdr);

    ret = dhd_export_debug_data(DHD_DUMP_LOG_HDR, fp, user_buf,
                                strlen(DHD_DUMP_LOG_HDR), pos);
    if (ret < 0) {
        goto exit;
    }

    len -= (uint32)strlen(DHD_DUMP_LOG_HDR);
    sec_hdr.type = LOG_DUMP_SECTION_DHD_DUMP;
    sec_hdr.length = len;
    ret = dhd_export_debug_data((char *)&sec_hdr, fp, user_buf, sizeof(sec_hdr),
                                pos);
    if (ret < 0) {
        goto exit;
    }

    len -= (uint32)sizeof(sec_hdr);

    if (dhdp->concise_dbg_buf) {
        dhd_dump(dhdp, (char *)dhdp->concise_dbg_buf, CONCISE_DUMP_BUFLEN);
        ret = dhd_export_debug_data(dhdp->concise_dbg_buf, fp, user_buf, len,
                                    pos);
        if (ret < 0) {
            goto exit;
        }
    }

exit:
    return ret;
}

int dhd_print_cookie_data(void *dev, dhd_pub_t *dhdp, const void *user_buf,
                          void *fp, uint32 len, void *pos)
{
    int ret = BCME_OK;
    dhd_info_t *dhd_info;

    if (dev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)dev);
#else
            dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)dev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return BCME_ERROR;
    }

    if (dhdp->logdump_cookie && dhd_logdump_cookie_count(dhdp) > 0) {
        ret = dhd_log_dump_cookie_to_file(dhdp, fp, user_buf,
                                          (unsigned long *)pos);
    }
    return ret;
}

#ifdef DHD_DUMP_PCIE_RINGS
int dhd_print_flowring_data(void *dev, dhd_pub_t *dhdp, const void *user_buf,
                            void *fp, uint32 len, void *pos)
{
    log_dump_section_hdr_t sec_hdr;
    int ret = BCME_OK;
    uint32 remain_len = 0;
    dhd_info_t *dhd_info;

    if (dev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)dev);
#else
        dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)dev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return BCME_ERROR;
    }

    dhd_init_sec_hdr(&sec_hdr);

    remain_len =
        dhd_dump(dhdp, (char *)dhdp->concise_dbg_buf, CONCISE_DUMP_BUFLEN);
    memset(dhdp->concise_dbg_buf, 0, CONCISE_DUMP_BUFLEN);

    /* write the section header first */
    ret = dhd_export_debug_data(FLOWRING_DUMP_HDR, fp, user_buf,
                                strlen(FLOWRING_DUMP_HDR), pos);
    if (ret < 0) {
        goto exit;
    }

    /* Write the ring summary */
    ret = dhd_export_debug_data(dhdp->concise_dbg_buf, fp, user_buf,
                                (CONCISE_DUMP_BUFLEN - remain_len), pos);
    if (ret < 0) {
        goto exit;
    }

    sec_hdr.type = LOG_DUMP_SECTION_FLOWRING;
    sec_hdr.length = len;
    ret = dhd_export_debug_data((char *)&sec_hdr, fp, user_buf, sizeof(sec_hdr),
                                pos);
    if (ret < 0) {
        goto exit;
    }

    /* write the log */
    ret = dhd_d2h_h2d_ring_dump(dhdp, fp, user_buf, (unsigned long *)pos, TRUE);
    if (ret < 0) {
        goto exit;
    }

exit:
    return ret;
}
#endif /* DHD_DUMP_PCIE_RINGS */

#ifdef EWP_ECNTRS_LOGGING
int dhd_print_ecntrs_data(void *dev, dhd_pub_t *dhdp, const void *user_buf,
                          void *fp, uint32 len, void *pos)
{
    log_dump_section_hdr_t sec_hdr;
    int ret = BCME_OK;
    dhd_info_t *dhd_info;

    if (dev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)dev);
#else
        dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)dev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return BCME_ERROR;
    }

    dhd_init_sec_hdr(&sec_hdr);

    if (logdump_ecntr_enable && dhdp->ecntr_dbg_ring) {
        sec_hdr.type = LOG_DUMP_SECTION_ECNTRS;
        ret =
            dhd_dump_debug_ring(dhdp, dhdp->ecntr_dbg_ring, user_buf, &sec_hdr,
                                ECNTRS_LOG_HDR, len, LOG_DUMP_SECTION_ECNTRS);
    }
    return ret;
}
#endif /* EWP_ECNTRS_LOGGING */

#ifdef EWP_RTT_LOGGING
int dhd_print_rtt_data(void *dev, dhd_pub_t *dhdp, const void *user_buf,
                       void *fp, uint32 len, void *pos)
{
    log_dump_section_hdr_t sec_hdr;
    int ret = BCME_OK;
    dhd_info_t *dhd_info;

    if (dev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)dev);
#else
        dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)dev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return BCME_ERROR;
    }

    dhd_init_sec_hdr(&sec_hdr);

    if (logdump_rtt_enable && dhdp->rtt_dbg_ring) {
        ret = dhd_dump_debug_ring(dhdp, dhdp->rtt_dbg_ring, user_buf, &sec_hdr,
                                  RTT_LOG_HDR, len, LOG_DUMP_SECTION_RTT);
    }
    return ret;
}
#endif /* EWP_RTT_LOGGING */

#ifdef DHD_STATUS_LOGGING
int dhd_print_status_log_data(void *dev, dhd_pub_t *dhdp, const void *user_buf,
                              void *fp, uint32 len, void *pos)
{
    dhd_info_t *dhd_info;

    if (dev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)dev);
#else
        dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)dev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (!dhdp) {
        return BCME_ERROR;
    }

    return dhd_statlog_write_logdump(dhdp, user_buf, fp, len, pos);
}

uint32 dhd_get_status_log_len(void *ndev, dhd_pub_t *dhdp)
{
    dhd_info_t *dhd_info;
    uint32 length = 0;

    if (ndev) {
#ifdef CONFIG_AP6XXX_WIFI6_HDF
        dhd_info = *(dhd_info_t **)DHD_DEV_PRIV((struct net_device *)ndev);
#else
        dhd_info = *(dhd_info_t **)netdev_priv((struct net_device *)ndev);
#endif
        dhdp = &dhd_info->pub;
    }

    if (dhdp) {
        length = dhd_statlog_get_logbuf_len(dhdp);
    }

    return length;
}
#endif /* DHD_STATUS_LOGGING */

void dhd_init_sec_hdr(log_dump_section_hdr_t *sec_hdr)
{
    /* prep the section header */
    memset(sec_hdr, 0, sizeof(*sec_hdr));
    sec_hdr->magic = LOG_DUMP_MAGIC;
    sec_hdr->timestamp = local_clock();
}

/* Must hold 'dhd_os_logdump_lock' before calling this function ! */
static int do_dhd_log_dump(dhd_pub_t *dhdp, log_dump_type_t *type)
{
    int ret = 0, i = 0;
    struct file *fp = NULL;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    mm_segment_t old_fs;
#endif
    loff_t pos = 0;
    char dump_path[128];
    uint32 file_mode;
    unsigned long flags = 0;
    size_t log_size = 0;
    size_t fspace_remain = 0;
    struct kstat stat;
    char time_str[128];
    unsigned int len = 0;
    log_dump_section_hdr_t sec_hdr;

    DHD_ERROR(("%s: ENTER \n", __FUNCTION__));

    DHD_GENERAL_LOCK(dhdp, flags);
    if (DHD_BUS_CHECK_DOWN_OR_DOWN_IN_PROGRESS(dhdp)) {
        DHD_GENERAL_UNLOCK(dhdp, flags);
        DHD_ERROR(
            ("%s: bus is down! can't collect log dump. \n", __FUNCTION__));
        goto exit1;
    }
    DHD_BUS_BUSY_SET_IN_LOGDUMP(dhdp);
    DHD_GENERAL_UNLOCK(dhdp, flags);

    if ((ret = dhd_log_flush(dhdp, type)) < 0) {
        goto exit1;
    }
    /* change to KERNEL_DS address limit */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    old_fs = get_fs();
    set_fs(KERNEL_DS);
#endif

    dhd_get_debug_dump_file_name(NULL, dhdp, dump_path, sizeof(dump_path));

    DHD_ERROR(("debug_dump_path = %s\n", dump_path));
    DHD_ERROR(("DHD version: %s\n", dhd_version));
    DHD_ERROR(("F/W version: %s\n", fw_version));

    dhd_log_dump_buf_addr(dhdp, type);

    dhd_get_time_str(dhdp, time_str, 0x80);

    /* if this is the first time after dhd is loaded,
     * or, if periodic flush is disabled, clear the log file
     */
    if (!dhdp->logdump_periodic_flush || dhdp->last_file_posn == 0) {
        file_mode = O_CREAT | O_WRONLY | O_SYNC | O_TRUNC;
    } else {
        file_mode = O_CREAT | O_RDWR | O_SYNC;
    }

    fp = filp_open(dump_path, file_mode, 0664);
    if (IS_ERR(fp)) {
        /* If ohos installed image, try '/data' directory */
#if defined(CONFIG_X86)
        DHD_ERROR((
            "%s: File open error on Installed ohos image, trying /data...\n",
            __FUNCTION__));
        snprintf(dump_path, sizeof(dump_path), "/data/" DHD_DEBUG_DUMP_TYPE);
        if (!dhdp->logdump_periodic_flush) {
            snprintf(dump_path + strlen(dump_path),
                     sizeof(dump_path) - strlen(dump_path), "_%s",
                     dhdp->debug_dump_time_str);
        }
        fp = filp_open(dump_path, file_mode, 0664);
        if (IS_ERR(fp)) {
            ret = PTR_ERR(fp);
            DHD_ERROR(("open file error, err = %d\n", ret));
            goto exit2;
        }
        DHD_ERROR(("debug_dump_path = %s\n", dump_path));
#else
            ret = PTR_ERR(fp);
            DHD_ERROR(("open file error, err = %d\n", ret));
            goto exit2;
#endif /* CONFIG_X86 */
    }

    ret = vfs_stat(dump_path, &stat);
    if (ret < 0) {
        DHD_ERROR(("file stat error, err = %d\n", ret));
        goto exit2;
    }

    /* if some one else has changed the file */
    if (dhdp->last_file_posn != 0 && stat.size < dhdp->last_file_posn) {
        dhdp->last_file_posn = 0;
    }

    if (dhdp->logdump_periodic_flush) {
        log_size =
            strlen(time_str) + strlen(DHD_DUMP_LOG_HDR) + sizeof(sec_hdr);
        /* calculate the amount of space required to dump all logs */
        for (i = 0; i < DLD_BUFFER_NUM; ++i) {
            if (*type != DLD_BUF_TYPE_ALL && i != *type) {
                continue;
            }

            if (g_dld_buf[i].wraparound) {
                log_size += (unsigned long)g_dld_buf[i].max -
                            (unsigned long)g_dld_buf[i].buffer;
            } else {
                spin_lock_irqsave(&g_dld_buf[i].lock, flags);
                log_size += (unsigned long)g_dld_buf[i].present -
                            (unsigned long)g_dld_buf[i].front;
                spin_unlock_irqrestore(&g_dld_buf[i].lock, flags);
            }
            log_size += strlen(dld_hdrs[i].hdr_str) + sizeof(sec_hdr);

            if (*type != DLD_BUF_TYPE_ALL && i == *type) {
                break;
            }
        }

        ret = generic_file_llseek(fp, dhdp->last_file_posn, SEEK_CUR);
        if (ret < 0) {
            DHD_ERROR(("file seek last posn error ! err = %d \n", ret));
            goto exit2;
        }
        pos = fp->f_pos;

        /* if the max file size is reached, wrap around to beginning of the file
         * we're treating the file as a large ring buffer
         */
        fspace_remain = logdump_max_filesize - pos;
        if (log_size > fspace_remain) {
            fp->f_pos -= pos;
            pos = fp->f_pos;
        }
    }

    dhd_print_time_str(0, fp, len, &pos);

    for (i = 0; i < DLD_BUFFER_NUM; ++i) {
        if (*type != DLD_BUF_TYPE_ALL && i != *type) {
            continue;
        }

        len = dhd_get_dld_len(i);
        dhd_get_dld_log_dump(NULL, dhdp, 0, fp, len, i, &pos);
        if (*type != DLD_BUF_TYPE_ALL) {
            break;
        }
    }

#ifdef EWP_ECNTRS_LOGGING
    /* periodic flushing of ecounters is NOT supported */
    if (*type == DLD_BUF_TYPE_ALL && logdump_ecntr_enable &&
        dhdp->ecntr_dbg_ring) {
        dhd_log_dump_ring_to_file(dhdp, dhdp->ecntr_dbg_ring, fp,
                                  (unsigned long *)&pos, &sec_hdr,
                                  ECNTRS_LOG_HDR, LOG_DUMP_SECTION_ECNTRS);
    }
#endif /* EWP_ECNTRS_LOGGING */

#ifdef DHD_STATUS_LOGGING
    if (dhdp->statlog) {
        /* write the statlog */
        len = dhd_get_status_log_len(NULL, dhdp);
        if (len) {
            if (dhd_print_status_log_data(NULL, dhdp, 0, fp, len, &pos) < 0) {
                goto exit2;
            }
        }
    }
#endif /* DHD_STATUS_LOGGING */

#ifdef EWP_RTT_LOGGING
    /* periodic flushing of ecounters is NOT supported */
    if (*type == DLD_BUF_TYPE_ALL && logdump_rtt_enable && dhdp->rtt_dbg_ring) {
        dhd_log_dump_ring_to_file(dhdp, dhdp->rtt_dbg_ring, fp,
                                  (unsigned long *)&pos, &sec_hdr, RTT_LOG_HDR,
                                  LOG_DUMP_SECTION_RTT);
    }
#endif /* EWP_RTT_LOGGING */

#ifdef BCMPCIE
    len = dhd_get_ext_trap_len(NULL, dhdp);
    if (len) {
        if (dhd_print_ext_trap_data(NULL, dhdp, 0, fp, len, &pos) < 0) {
            goto exit2;
        }
    }
#endif /* BCMPCIE */

#if defined(DHD_FW_COREDUMP) && defined(DNGL_EVENT_SUPPORT)
    len = dhd_get_health_chk_len(NULL, dhdp);
    if (len) {
        if (dhd_print_ext_trap_data(NULL, dhdp, 0, fp, len, &pos) < 0) {
            goto exit2;
        }
    }
#endif /* DHD_FW_COREDUMP && DNGL_EVENT_SUPPORT */

    len = dhd_get_dhd_dump_len(NULL, dhdp);
    if (len) {
        if (dhd_print_dump_data(NULL, dhdp, 0, fp, len, &pos) < 0) {
            goto exit2;
        }
    }

    len = dhd_get_cookie_log_len(NULL, dhdp);
    if (len) {
        if (dhd_print_cookie_data(NULL, dhdp, 0, fp, len, &pos) < 0) {
            goto exit2;
        }
    }

#ifdef DHD_DUMP_PCIE_RINGS
    len = dhd_get_flowring_len(NULL, dhdp);
    if (len) {
        if (dhd_print_flowring_data(NULL, dhdp, 0, fp, len, &pos) < 0) {
            goto exit2;
        }
    }
#endif // endif

    if (dhdp->logdump_periodic_flush) {
        /* store the last position written to in the file for future use */
        dhdp->last_file_posn = pos;
    }

exit2:
    if (!IS_ERR(fp) && fp != NULL) {
        filp_close(fp, NULL);
        DHD_ERROR(("%s: Finished writing log dump to file - '%s' \n",
                   __FUNCTION__, dump_path));
    }
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    set_fs(old_fs);
#endif
exit1:
    if (type) {
        MFREE(dhdp->osh, type, sizeof(*type));
    }
    DHD_GENERAL_LOCK(dhdp, flags);
    DHD_BUS_BUSY_CLEAR_IN_LOGDUMP(dhdp);
    dhd_os_busbusy_wake(dhdp);
    DHD_GENERAL_UNLOCK(dhdp, flags);

#ifdef DHD_DUMP_MNGR
    if (ret >= 0) {
        dhd_dump_file_manage_enqueue(dhdp, dump_path, DHD_DEBUG_DUMP_TYPE);
    }
#endif /* DHD_DUMP_MNGR */

    return (ret < 0) ? BCME_ERROR : BCME_OK;
}
#endif /* DHD_LOG_DUMP */

/* This function writes data to the file pointed by fp, OR
 * copies data to the user buffer sent by upper layer(HAL).
 */
int dhd_export_debug_data(void *mem_buf, void *fp, const void *user_buf,
                          int buf_len, void *pos)
{
    int ret = BCME_OK;

    if (fp) {
        ret = compat_vfs_write(fp, mem_buf, buf_len, (loff_t *)pos);
        if (ret < 0) {
            DHD_ERROR(("write file error, err = %d\n", ret));
            goto exit;
        }
    } else {
#ifdef CONFIG_COMPAT
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 6, 0))
        if (in_compat_syscall())
#else
            if (is_compat_task())
#endif /* LINUX_VER >= 4.6 */
        {
            void *usr_ptr = compat_ptr((uintptr_t)user_buf);
            ret = copy_to_user((void *)((uintptr_t)usr_ptr + (*(int *)pos)),
                               mem_buf, buf_len);
            if (ret) {
                DHD_ERROR(("failed to copy into user buffer : %d\n", ret));
                goto exit;
            }
        } else
#endif /* CONFIG_COMPAT */
        {
            ret = copy_to_user((void *)((uintptr_t)user_buf + (*(int *)pos)),
                               mem_buf, buf_len);
            if (ret) {
                DHD_ERROR(("failed to copy into user buffer : %d\n", ret));
                goto exit;
            }
        }
        (*(int *)pos) += buf_len;
    }
exit:
    return ret;
}

/*
 * This call is to get the memdump size so that,
 * halutil can alloc that much buffer in user space.
 */
int dhd_os_socram_dump(struct net_device *dev, uint32 *dump_size)
{
    int ret = BCME_OK;
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    dhd_pub_t *dhdp = &dhd->pub;

    if (dhdp->busstate == DHD_BUS_DOWN) {
        DHD_ERROR(("%s: bus is down\n", __FUNCTION__));
        return BCME_ERROR;
    }

    if (DHD_BUS_CHECK_SUSPEND_OR_SUSPEND_IN_PROGRESS(dhdp)) {
        DHD_ERROR(
            ("%s: bus is in suspend(%d) or suspending(0x%x) state, so skip\n",
             __FUNCTION__, dhdp->busstate, dhdp->dhd_bus_busy_state));
        return BCME_ERROR;
    }
    ret = dhd_common_socram_dump(dhdp);
    if (ret == BCME_OK) {
        *dump_size = dhdp->soc_ram_length;
    }
    return ret;
}

/*
 * This is to get the actual memdup after getting the memdump size
 */
int dhd_os_get_socram_dump(struct net_device *dev, char **buf, uint32 *size)
{
    int ret = BCME_OK;
    int orig_len = 0;
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    dhd_pub_t *dhdp = &dhd->pub;
    if (buf == NULL) {
        return BCME_ERROR;
    }
    orig_len = *size;
    if (dhdp->soc_ram) {
        if (orig_len >= dhdp->soc_ram_length) {
            *buf = dhdp->soc_ram;
            *size = dhdp->soc_ram_length;
        } else {
            ret = BCME_BUFTOOSHORT;
            DHD_ERROR(("The length of the buffer is too short"
                       " to save the memory dump with %d\n",
                       dhdp->soc_ram_length));
        }
    } else {
        DHD_ERROR(("socram_dump is not ready to get\n"));
        ret = BCME_NOTREADY;
    }
    return ret;
}

int dhd_os_get_version(struct net_device *dev, bool dhd_ver, char **buf,
                       uint32 size)
{
    char *fw_str;

    if (size == 0) {
        return BCME_BADARG;
    }

    fw_str = strstr(info_string, "Firmware: ");
    if (fw_str == NULL) {
        return BCME_ERROR;
    }

    memset(*buf, 0, size);
    if (dhd_ver) {
        strncpy(*buf, dhd_version, size - 1);
    } else {
        strncpy(*buf, fw_str, size - 1);
    }
    return BCME_OK;
}

#ifdef DNGL_AXI_ERROR_LOGGING
int dhd_os_get_axi_error_dump(void *dev, const void *user_buf, uint32 len)
{
    int ret = BCME_OK;
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhd = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
#endif
    dhd_pub_t *dhdp = &dhd->pub;
    loff_t pos = 0;
    if (user_buf == NULL) {
        DHD_ERROR(("%s(): user buffer is NULL\n", __FUNCTION__));
        return BCME_ERROR;
    }

    ret = dhd_export_debug_data((char *)dhdp->axi_err_dump, NULL, user_buf,
                                sizeof(dhd_axi_error_dump_t), &pos);
    if (ret < 0) {
        DHD_ERROR(("%s(): fail to dump pktlog, err = %d\n", __FUNCTION__, ret));
        return ret;
    }
    return ret;
}

int dhd_os_get_axi_error_dump_size(struct net_device *dev)
{
    int size = -1;
    size = sizeof(dhd_axi_error_dump_t);
    if (size < 0) {
        DHD_ERROR(("%s(): fail to get axi error size, err = %d\n", __FUNCTION__,
                   size));
    }
    return size;
}

void dhd_os_get_axi_error_filename(struct net_device *dev, char *dump_path,
                                   int len)
{
    snprintf(dump_path, len, "%s",
             DHD_COMMON_DUMP_PATH DHD_DUMP_AXI_ERROR_FILENAME);
}
#endif /* DNGL_AXI_ERROR_LOGGING */

bool dhd_sta_associated(dhd_pub_t *dhdp, uint32 bssidx, uint8 *mac)
{
    return dhd_find_sta(dhdp, bssidx, mac) ? TRUE : FALSE;
}

#ifdef DHD_L2_FILTER
arp_table_t *dhd_get_ifp_arp_table_handle(dhd_pub_t *dhdp, uint32 bssidx)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;

    ASSERT(bssidx < DHD_MAX_IFS);

    ifp = dhd->iflist[bssidx];
    return ifp->phnd_arp_table;
}

int dhd_get_parp_status(dhd_pub_t *dhdp, uint32 idx)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;

    ASSERT(idx < DHD_MAX_IFS);

    ifp = dhd->iflist[idx];

    if (ifp) {
        return ifp->parp_enable;
    } else {
        return FALSE;
    }
}

/* Set interface specific proxy arp configuration */
int dhd_set_parp_status(dhd_pub_t *dhdp, uint32 idx, int val)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;
    ASSERT(idx < DHD_MAX_IFS);
    ifp = dhd->iflist[idx];

    if (!ifp) {
        return BCME_ERROR;
    }

    /* At present all 3 variables are being
     * handled at once
     */
    ifp->parp_enable = val;
    ifp->parp_discard = val;
    ifp->parp_allnode = val;

    /* Flush ARP entries when disabled */
    if (val == FALSE) {
        bcm_l2_filter_arp_table_update(dhdp->osh, ifp->phnd_arp_table, TRUE,
                                       NULL, FALSE, dhdp->tickcnt);
    }
    return BCME_OK;
}

bool dhd_parp_discard_is_enabled(dhd_pub_t *dhdp, uint32 idx)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;

    ASSERT(idx < DHD_MAX_IFS);

    ifp = dhd->iflist[idx];

    ASSERT(ifp);
    return ifp->parp_discard;
}

bool dhd_parp_allnode_is_enabled(dhd_pub_t *dhdp, uint32 idx)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;

    ASSERT(idx < DHD_MAX_IFS);

    ifp = dhd->iflist[idx];

    ASSERT(ifp);

    return ifp->parp_allnode;
}

int dhd_get_dhcp_unicast_status(dhd_pub_t *dhdp, uint32 idx)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;

    ASSERT(idx < DHD_MAX_IFS);

    ifp = dhd->iflist[idx];

    ASSERT(ifp);

    return ifp->dhcp_unicast;
}

int dhd_set_dhcp_unicast_status(dhd_pub_t *dhdp, uint32 idx, int val)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;
    ASSERT(idx < DHD_MAX_IFS);
    ifp = dhd->iflist[idx];

    ASSERT(ifp);

    ifp->dhcp_unicast = val;
    return BCME_OK;
}

int dhd_get_block_ping_status(dhd_pub_t *dhdp, uint32 idx)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;

    ASSERT(idx < DHD_MAX_IFS);

    ifp = dhd->iflist[idx];

    ASSERT(ifp);

    return ifp->block_ping;
}

int dhd_set_block_ping_status(dhd_pub_t *dhdp, uint32 idx, int val)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;
    ASSERT(idx < DHD_MAX_IFS);
    ifp = dhd->iflist[idx];

    ASSERT(ifp);

    ifp->block_ping = val;
    /* Disable rx_pkt_chain feature for interface if block_ping option is
     * enabled
     */
    dhd_update_rx_pkt_chainable_state(dhdp, idx);
    return BCME_OK;
}

int dhd_get_grat_arp_status(dhd_pub_t *dhdp, uint32 idx)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;

    ASSERT(idx < DHD_MAX_IFS);

    ifp = dhd->iflist[idx];

    ASSERT(ifp);

    return ifp->grat_arp;
}

int dhd_set_grat_arp_status(dhd_pub_t *dhdp, uint32 idx, int val)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;
    ASSERT(idx < DHD_MAX_IFS);
    ifp = dhd->iflist[idx];

    ASSERT(ifp);

    ifp->grat_arp = val;

    return BCME_OK;
}

int dhd_get_block_tdls_status(dhd_pub_t *dhdp, uint32 idx)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;

    ASSERT(idx < DHD_MAX_IFS);

    ifp = dhd->iflist[idx];

    ASSERT(ifp);

    return ifp->block_tdls;
}

int dhd_set_block_tdls_status(dhd_pub_t *dhdp, uint32 idx, int val)
{
    dhd_info_t *dhd = dhdp->info;
    dhd_if_t *ifp;
    ASSERT(idx < DHD_MAX_IFS);
    ifp = dhd->iflist[idx];

    ASSERT(ifp);

    ifp->block_tdls = val;

    return BCME_OK;
}
#endif /* DHD_L2_FILTER */

#if defined(SET_XPS_CPUS)
int dhd_xps_cpus_enable(struct net_device *net, int enable)
{
    dhd_info_t *dhd = DHD_DEV_INFO(net);
    dhd_if_t *ifp;
    int ifidx;
    char *XPS_CPU_SETBUF;

    ifidx = dhd_net2idx(dhd, net);
    if (ifidx == DHD_BAD_IF) {
        DHD_ERROR(("%s bad ifidx\n", __FUNCTION__));
        return -ENODEV;
    }

    if (!dhd->pub.conf->xps_cpus) {
        return -ENODEV;
    }

    if (ifidx == PRIMARY_INF) {
        if (dhd->pub.op_mode == DHD_FLAG_IBSS_MODE) {
            DHD_INFO(("%s : set for IBSS.\n", __FUNCTION__));
            XPS_CPU_SETBUF = RPS_CPUS_MASK_IBSS;
        } else {
            DHD_INFO(("%s : set for BSS.\n", __FUNCTION__));
            XPS_CPU_SETBUF = RPS_CPUS_MASK;
        }
    } else if (ifidx == VIRTUAL_INF) {
        DHD_INFO(("%s : set for P2P.\n", __FUNCTION__));
        XPS_CPU_SETBUF = RPS_CPUS_MASK_P2P;
    } else {
        DHD_ERROR(("%s : Invalid index : %d.\n", __FUNCTION__, ifidx));
        return -EINVAL;
    }

    ifp = dhd->iflist[ifidx];
    if (ifp) {
        if (enable) {
            DHD_INFO(
                ("%s : set xps_cpus as [%s]\n", __FUNCTION__, XPS_CPU_SETBUF));
            custom_xps_map_set(ifp->net, XPS_CPU_SETBUF,
                               strlen(XPS_CPU_SETBUF));
        } else {
            custom_xps_map_clear(ifp->net);
        }
    } else {
        DHD_ERROR(("%s : ifp is NULL!!\n", __FUNCTION__));
        return -ENODEV;
    }
    return BCME_OK;
}

int custom_xps_map_set(struct net_device *net, char *buf, size_t len)
{
    cpumask_var_t mask;
    int err;

    DHD_INFO(("%s : Entered.\n", __FUNCTION__));

    if (!alloc_cpumask_var(&mask, GFP_KERNEL)) {
        DHD_ERROR(("%s : alloc_cpumask_var fail.\n", __FUNCTION__));
        return -ENOMEM;
    }

    err = bitmap_parse(buf, len, cpumask_bits(mask), nr_cpumask_bits);
    if (err) {
        free_cpumask_var(mask);
        DHD_ERROR(("%s : bitmap_parse fail.\n", __FUNCTION__));
        return err;
    }

    err = netif_set_xps_queue(net, mask, 0);

    free_cpumask_var(mask);

    if (err == 0) {
        WL_MSG(net->name, "Done. mapping cpu\n");
    }

    return err;
}

void custom_xps_map_clear(struct net_device *net)
{
    struct xps_dev_maps *dev_maps;

    DHD_INFO(("%s : Entered.\n", __FUNCTION__));

    rcu_read_lock();
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 19, 0))
    dev_maps = rcu_dereference(net->xps_cpus_map);
#else
        dev_maps = rcu_dereference(net->xps_maps);
#endif
    rcu_read_unlock();

    if (dev_maps) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 19, 0))
        RCU_INIT_POINTER(net->xps_cpus_map, NULL);
#else
            RCU_INIT_POINTER(net->xps_maps, NULL);
#endif
        kfree_rcu(dev_maps, rcu);
        DHD_INFO(("%s : xps_cpus map clear.\n", __FUNCTION__));
    }
}
#endif // endif

#if defined(SET_RPS_CPUS)
int dhd_rps_cpus_enable(struct net_device *net, int enable)
{
    dhd_info_t *dhd = DHD_DEV_INFO(net);
    dhd_if_t *ifp;
    int ifidx;
    char *RPS_CPU_SETBUF;

    ifidx = dhd_net2idx(dhd, net);
    if (ifidx == DHD_BAD_IF) {
        DHD_ERROR(("%s bad ifidx\n", __FUNCTION__));
        return -ENODEV;
    }

    if (!dhd->pub.conf->rps_cpus) {
        return -ENODEV;
    }

    if (ifidx == PRIMARY_INF) {
        if (dhd->pub.op_mode == DHD_FLAG_IBSS_MODE) {
            DHD_INFO(("%s : set for IBSS.\n", __FUNCTION__));
            RPS_CPU_SETBUF = RPS_CPUS_MASK_IBSS;
        } else {
            DHD_INFO(("%s : set for BSS.\n", __FUNCTION__));
            RPS_CPU_SETBUF = RPS_CPUS_MASK;
        }
    } else if (ifidx == VIRTUAL_INF) {
        DHD_INFO(("%s : set for P2P.\n", __FUNCTION__));
        RPS_CPU_SETBUF = RPS_CPUS_MASK_P2P;
    } else {
        DHD_ERROR(("%s : Invalid index : %d.\n", __FUNCTION__, ifidx));
        return -EINVAL;
    }

    ifp = dhd->iflist[ifidx];
    if (ifp) {
        if (enable) {
            DHD_INFO(
                ("%s : set rps_cpus as [%s]\n", __FUNCTION__, RPS_CPU_SETBUF));
            custom_rps_map_set(ifp->net->_rx, RPS_CPU_SETBUF,
                               strlen(RPS_CPU_SETBUF));
        } else {
            custom_rps_map_clear(ifp->net->_rx);
        }
    } else {
        DHD_ERROR(("%s : ifp is NULL!!\n", __FUNCTION__));
        return -ENODEV;
    }
    return BCME_OK;
}

int custom_rps_map_set(struct netdev_rx_queue *queue, char *buf, size_t len)
{
    struct rps_map *old_map, *map;
    cpumask_var_t mask;
    int err, cpu, i;
    static DEFINE_SPINLOCK(rps_map_lock);

    DHD_INFO(("%s : Entered.\n", __FUNCTION__));

    if (!alloc_cpumask_var(&mask, GFP_KERNEL)) {
        DHD_ERROR(("%s : alloc_cpumask_var fail.\n", __FUNCTION__));
        return -ENOMEM;
    }

    err = bitmap_parse(buf, len, cpumask_bits(mask), nr_cpumask_bits);
    if (err) {
        free_cpumask_var(mask);
        DHD_ERROR(("%s : bitmap_parse fail.\n", __FUNCTION__));
        return err;
    }

    map = kzalloc(
        max_t(unsigned int, RPS_MAP_SIZE(cpumask_weight(mask)), L1_CACHE_BYTES),
        GFP_KERNEL);
    if (!map) {
        free_cpumask_var(mask);
        DHD_ERROR(("%s : map malloc fail.\n", __FUNCTION__));
        return -ENOMEM;
    }

    i = 0;
    for_each_cpu(cpu, mask)
    {
        map->cpus[i++] = cpu;
    }

    if (i) {
        map->len = i;
    } else {
        kfree(map);
        map = NULL;
        free_cpumask_var(mask);
        DHD_ERROR(("%s : mapping cpu fail.\n", __FUNCTION__));
        return -1;
    }

    spin_lock(&rps_map_lock);
    old_map = rcu_dereference_protected(queue->rps_map,
                                        lockdep_is_held(&rps_map_lock));
    rcu_assign_pointer(queue->rps_map, map);
    spin_unlock(&rps_map_lock);

    if (map) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 2, 0))
        static_key_slow_inc(&rps_needed.key);
#else
            static_key_slow_inc(&rps_needed);
#endif
    }
    if (old_map) {
        kfree_rcu(old_map, rcu);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 2, 0))
        static_key_slow_dec(&rps_needed.key);
#else
            static_key_slow_dec(&rps_needed);
#endif
    }
    free_cpumask_var(mask);

    DHD_INFO(("%s : Done. mapping cpu nummber : %d\n", __FUNCTION__, map->len));
    return map->len;
}

void custom_rps_map_clear(struct netdev_rx_queue *queue)
{
    struct rps_map *map;

    DHD_INFO(("%s : Entered.\n", __FUNCTION__));

    map = rcu_dereference_protected(queue->rps_map, 1);
    if (map) {
        RCU_INIT_POINTER(queue->rps_map, NULL);
        kfree_rcu(map, rcu);
        DHD_INFO(("%s : rps_cpus map clear.\n", __FUNCTION__));
    }
}
#endif // endif

#if defined(ARGOS_NOTIFY_CB)

static int argos_status_notifier_wifi_cb(struct notifier_block *notifier,
                                         unsigned long speed, void *v);
static int argos_status_notifier_p2p_cb(struct notifier_block *notifier,
                                        unsigned long speed, void *v);

int argos_register_notifier_init(struct net_device *net)
{
    int ret = 0;

    DHD_INFO(("DHD: %s: \n", __FUNCTION__));
    argos_rps_ctrl_data.wlan_primary_netdev = net;
    argos_rps_ctrl_data.argos_rps_cpus_enabled = 0;

    if (argos_wifi.notifier_call == NULL) {
        argos_wifi.notifier_call = argos_status_notifier_wifi_cb;
        ret = sec_argos_register_notifier(&argos_wifi, ARGOS_WIFI_TABLE_LABEL);
        if (ret < 0) {
            DHD_ERROR(("DHD:Failed to register WIFI notifier, ret=%d\n", ret));
            goto exit;
        }
    }

    if (argos_p2p.notifier_call == NULL) {
        argos_p2p.notifier_call = argos_status_notifier_p2p_cb;
        ret = sec_argos_register_notifier(&argos_p2p, ARGOS_P2P_TABLE_LABEL);
        if (ret < 0) {
            DHD_ERROR(("DHD:Failed to register P2P notifier, ret=%d\n", ret));
            sec_argos_unregister_notifier(&argos_wifi, ARGOS_WIFI_TABLE_LABEL);
            goto exit;
        }
    }

    return 0;

exit:
    if (argos_wifi.notifier_call) {
        argos_wifi.notifier_call = NULL;
    }

    if (argos_p2p.notifier_call) {
        argos_p2p.notifier_call = NULL;
    }

    return ret;
}

int argos_register_notifier_deinit(void)
{
    DHD_INFO(("DHD: %s: \n", __FUNCTION__));

    if (argos_rps_ctrl_data.wlan_primary_netdev == NULL) {
        DHD_ERROR(("DHD: primary_net_dev is null %s: \n", __FUNCTION__));
        return -1;
    }
#ifndef DHD_LB
    custom_rps_map_clear(argos_rps_ctrl_data.wlan_primary_netdev->_rx);
#endif /* !DHD_LB */

    if (argos_p2p.notifier_call) {
        sec_argos_unregister_notifier(&argos_p2p, ARGOS_P2P_TABLE_LABEL);
        argos_p2p.notifier_call = NULL;
    }

    if (argos_wifi.notifier_call) {
        sec_argos_unregister_notifier(&argos_wifi, ARGOS_WIFI_TABLE_LABEL);
        argos_wifi.notifier_call = NULL;
    }

    argos_rps_ctrl_data.wlan_primary_netdev = NULL;
    argos_rps_ctrl_data.argos_rps_cpus_enabled = 0;

    return 0;
}

int argos_status_notifier_wifi_cb(struct notifier_block *notifier,
                                  unsigned long speed, void *v)
{
    dhd_info_t *dhd;
    dhd_pub_t *dhdp;
#if defined(ARGOS_NOTIFY_CB)
    unsigned int pcie_irq = 0;
#endif /* ARGOS_NOTIFY_CB */
    DHD_INFO(("DHD: %s: speed=%ld\n", __FUNCTION__, speed));

    if (argos_rps_ctrl_data.wlan_primary_netdev == NULL) {
        goto exit;
    }

    dhd = DHD_DEV_INFO(argos_rps_ctrl_data.wlan_primary_netdev);
    if (dhd == NULL) {
        goto exit;
    }

    dhdp = &dhd->pub;
    if (dhdp == NULL || !dhdp->up) {
        goto exit;
    }
    /* Check if reported TPut value is more than threshold value */
    if (speed > RPS_TPUT_THRESHOLD) {
        if (argos_rps_ctrl_data.argos_rps_cpus_enabled == 0) {
            /* It does not need to configre rps_cpus
             * if Load Balance is enabled
             */
#ifndef DHD_LB
            int err = 0;

            if (cpu_online(RPS_CPUS_WLAN_CORE_ID)) {
                err = custom_rps_map_set(
                    argos_rps_ctrl_data.wlan_primary_netdev->_rx, RPS_CPUS_MASK,
                    strlen(RPS_CPUS_MASK));
            } else {
                DHD_ERROR(("DHD: %s: RPS_Set fail,"
                           " Core=%d Offline\n",
                           __FUNCTION__, RPS_CPUS_WLAN_CORE_ID));
                err = -1;
            }

            if (err < 0) {
                DHD_ERROR(("DHD: %s: Failed to RPS_CPUs. "
                           "speed=%ld, error=%d\n",
                           __FUNCTION__, speed, err));
            } else {
#endif /* !DHD_LB */
#if (defined(DHDTCPACK_SUPPRESS) && defined(BCMPCIE))
                if (dhdp->tcpack_sup_mode != TCPACK_SUP_HOLD) {
                    DHD_ERROR(("%s : set ack suppress. TCPACK_SUP_ON(%d)\n",
                               __FUNCTION__, TCPACK_SUP_HOLD));
                    dhd_tcpack_suppress_set(dhdp, TCPACK_SUP_HOLD);
                }
#endif /* DHDTCPACK_SUPPRESS && BCMPCIE */
                argos_rps_ctrl_data.argos_rps_cpus_enabled = 1;
#ifndef DHD_LB
                DHD_ERROR(("DHD: %s: Set RPS_CPUs, speed=%ld\n", __FUNCTION__,
                           speed));
            }
#endif /* !DHD_LB */
        }
    } else {
        if (argos_rps_ctrl_data.argos_rps_cpus_enabled == 1) {
#if (defined(DHDTCPACK_SUPPRESS) && defined(BCMPCIE))
            if (dhdp->tcpack_sup_mode != TCPACK_SUP_OFF) {
                DHD_ERROR(
                    ("%s : set ack suppress. TCPACK_SUP_OFF\n", __FUNCTION__));
                dhd_tcpack_suppress_set(dhdp, TCPACK_SUP_OFF);
            }
#endif /* DHDTCPACK_SUPPRESS && BCMPCIE */
#ifndef DHD_LB
            /* It does not need to configre rps_cpus
             * if Load Balance is enabled
             */
            custom_rps_map_clear(argos_rps_ctrl_data.wlan_primary_netdev->_rx);
            DHD_ERROR(
                ("DHD: %s: Clear RPS_CPUs, speed=%ld\n", __FUNCTION__, speed));
            OSL_SLEEP(DELAY_TO_CLEAR_RPS_CPUS);
#endif /* !DHD_LB */
            argos_rps_ctrl_data.argos_rps_cpus_enabled = 0;
        }
    }

exit:
    return NOTIFY_OK;
}

int argos_status_notifier_p2p_cb(struct notifier_block *notifier,
                                 unsigned long speed, void *v)
{
    DHD_INFO(("DHD: %s: speed=%ld\n", __FUNCTION__, speed));
    return argos_status_notifier_wifi_cb(notifier, speed, v);
}
#endif // endif

#ifdef DHD_DEBUG_PAGEALLOC

void dhd_page_corrupt_cb(void *handle, void *addr_corrupt, size_t len)
{
    dhd_pub_t *dhdp = (dhd_pub_t *)handle;

    DHD_ERROR(("%s: Got dhd_page_corrupt_cb 0x%p %d\n", __FUNCTION__,
               addr_corrupt, (uint32)len));

    DHD_OS_WAKE_LOCK(dhdp);
    prhex("Page Corruption:", addr_corrupt, len);
    dhd_dump_to_kernelog(dhdp);
#if defined(BCMPCIE) && defined(DHD_FW_COREDUMP)
    /* Load the dongle side dump to host memory and then BUG_ON() */
    dhdp->memdump_enabled = DUMP_MEMONLY;
    dhdp->memdump_type = DUMP_TYPE_MEMORY_CORRUPTION;
    dhd_bus_mem_dump(dhdp);
#endif /* BCMPCIE && DHD_FW_COREDUMP */
    DHD_OS_WAKE_UNLOCK(dhdp);
}
EXPORT_SYMBOL(dhd_page_corrupt_cb);
#endif /* DHD_DEBUG_PAGEALLOC */

#if defined(BCMPCIE) && defined(DHD_PKTID_AUDIT_ENABLED)
void dhd_pktid_error_handler(dhd_pub_t *dhdp)
{
    DHD_ERROR(("%s: Got Pkt Id Audit failure \n", __FUNCTION__));
    DHD_OS_WAKE_LOCK(dhdp);
    dhd_dump_to_kernelog(dhdp);
#ifdef DHD_FW_COREDUMP
    /* Load the dongle side dump to host memory */
    if (dhdp->memdump_enabled == DUMP_DISABLED) {
        dhdp->memdump_enabled = DUMP_MEMFILE;
    }
    dhdp->memdump_type = DUMP_TYPE_PKTID_AUDIT_FAILURE;
    dhd_bus_mem_dump(dhdp);
#endif /* DHD_FW_COREDUMP */
    dhdp->hang_reason = HANG_REASON_PCIE_PKTID_ERROR;
    dhd_os_check_hang(dhdp, 0, -EREMOTEIO);
    DHD_OS_WAKE_UNLOCK(dhdp);
}
#endif /* BCMPCIE && DHD_PKTID_AUDIT_ENABLED */

struct net_device *dhd_linux_get_primary_netdev(dhd_pub_t *dhdp)
{
    dhd_info_t *dhd = dhdp->info;

    if (dhd->iflist[0] && dhd->iflist[0]->net) {
        return dhd->iflist[0]->net;
    } else {
        return NULL;
    }
}

fw_download_status_t dhd_fw_download_status(dhd_pub_t *dhd_pub)
{
    return dhd_pub->fw_download_status;
}

static int dhd_create_to_notifier_skt(void)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
    /* Kernel 3.7 onwards this API accepts only 3 arguments. */
    /* Kernel version 3.6 is a special case which accepts 4 arguments */
    nl_to_event_sk =
        netlink_kernel_create(&init_net, BCM_NL_USER, &dhd_netlink_cfg);
#elif (LINUX_VERSION_CODE < KERNEL_VERSION(3, 6, 0))
    /* Kernel version 3.5 and below use this old API format */
    nl_to_event_sk = netlink_kernel_create(
        &init_net, BCM_NL_USER, 0, dhd_process_daemon_msg, NULL, THIS_MODULE);
#else
    nl_to_event_sk = netlink_kernel_create(&init_net, BCM_NL_USER, THIS_MODULE,
                                           &dhd_netlink_cfg);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0)) */
    if (!nl_to_event_sk) {
        printf("Error creating socket.\n");
        return -1;
    }
    DHD_INFO(("nl_to socket created successfully...\n"));
    return 0;
}

void dhd_destroy_to_notifier_skt(void)
{
    DHD_INFO(("Destroying nl_to socket\n"));
    netlink_kernel_release(nl_to_event_sk);
}

static void dhd_recv_msg_from_daemon(struct sk_buff *skb)
{
    struct nlmsghdr *nlh;
    bcm_to_info_t *cmd;

    nlh = (struct nlmsghdr *)skb->data;
    cmd = (bcm_to_info_t *)nlmsg_data(nlh);
    if ((cmd->magic == BCM_TO_MAGIC) &&
        (cmd->reason == REASON_DAEMON_STARTED)) {
        sender_pid = ((struct nlmsghdr *)(skb->data))->nlmsg_pid;
        DHD_INFO(("DHD Daemon Started\n"));
    }
}

int dhd_send_msg_to_daemon(struct sk_buff *skb, void *data, int size)
{
    struct nlmsghdr *nlh;
    struct sk_buff *skb_out;
    int ret = BCME_ERROR;

    BCM_REFERENCE(skb);
    if (sender_pid == 0) {
        DHD_INFO(("Invalid PID 0\n"));
        skb_out = NULL;
        goto err;
    }

    if ((skb_out = nlmsg_new(size, 0)) == NULL) {
        DHD_ERROR(("%s: skb alloc failed\n", __FUNCTION__));
        ret = BCME_NOMEM;
        goto err;
    }
    nlh = nlmsg_put(skb_out, 0, 0, NLMSG_DONE, size, 0);
    if (nlh == NULL) {
        DHD_ERROR(("%s: nlmsg_put failed\n", __FUNCTION__));
        goto err;
    }
    NETLINK_CB(skb_out).dst_group = 0; /* Unicast */
    (void)memcpy_s(nlmsg_data(nlh), size, (char *)data, size);

    if ((ret = nlmsg_unicast(nl_to_event_sk, skb_out, sender_pid)) < 0) {
        DHD_ERROR(("Error sending message, ret:%d\n", ret));
        /* skb is already freed inside nlmsg_unicast() on error case */
        /* explicitly making skb_out to NULL to avoid double free */
        skb_out = NULL;
        goto err;
    }
    return BCME_OK;
err:
    if (skb_out) {
        nlmsg_free(skb_out);
    }
    return ret;
}

static void dhd_process_daemon_msg(struct sk_buff *skb)
{
    bcm_to_info_t to_info;

    to_info.magic = BCM_TO_MAGIC;
    to_info.reason = REASON_DAEMON_STARTED;
    to_info.trap = NO_TRAP;

    dhd_recv_msg_from_daemon(skb);
    dhd_send_msg_to_daemon(skb, &to_info, sizeof(to_info));
}

#ifdef DHD_LOG_DUMP
bool dhd_log_dump_ecntr_enabled(void)
{
    return (bool)logdump_ecntr_enable;
}

bool dhd_log_dump_rtt_enabled(void)
{
    return (bool)logdump_rtt_enable;
}

void dhd_log_dump_init(dhd_pub_t *dhd)
{
    struct dhd_log_dump_buf *dld_buf, *dld_buf_special;
    int i = 0;
    uint8 *prealloc_buf = NULL, *bufptr = NULL;
#if defined(CONFIG_DHD_USE_STATIC_BUF) && defined(DHD_USE_STATIC_MEMDUMP)
    int prealloc_idx = DHD_PREALLOC_DHD_LOG_DUMP_BUF;
#endif /* CONFIG_DHD_USE_STATIC_BUF && DHD_USE_STATIC_MEMDUMP */
    int ret;
    dhd_dbg_ring_t *ring = NULL;
    unsigned long flags = 0;
    dhd_info_t *dhd_info = dhd->info;
    void *cookie_buf = NULL;

    BCM_REFERENCE(ret);
    BCM_REFERENCE(ring);
    BCM_REFERENCE(flags);

    /* sanity check */
    if (logdump_prsrv_tailsize <= 0 ||
        logdump_prsrv_tailsize > DHD_LOG_DUMP_MAX_TAIL_FLUSH_SIZE) {
        logdump_prsrv_tailsize = DHD_LOG_DUMP_MAX_TAIL_FLUSH_SIZE;
    }
    /* now adjust the preserve log flush size based on the
     * kernel printk log buffer size
     */
#ifdef CONFIG_LOG_BUF_SHIFT
    DHD_ERROR(("%s: kernel log buf size = %uKB; logdump_prsrv_tailsize = %uKB;"
               " limit prsrv tail size to = %uKB\n",
               __FUNCTION__, (1 << CONFIG_LOG_BUF_SHIFT) / 0x400,
               logdump_prsrv_tailsize / 0x400,
               LOG_DUMP_KERNEL_TAIL_FLUSH_SIZE / 0x400));

    if (logdump_prsrv_tailsize > LOG_DUMP_KERNEL_TAIL_FLUSH_SIZE) {
        logdump_prsrv_tailsize = LOG_DUMP_KERNEL_TAIL_FLUSH_SIZE;
    }
#else
    DHD_ERROR(("%s: logdump_prsrv_tailsize = %uKB \n",
		__FUNCTION__, logdump_prsrv_tailsize/0x400);
#endif /* CONFIG_LOG_BUF_SHIFT */

    mutex_init(&dhd_info->logdump_lock);

    /* initialize log dump buf structures */
    memset(g_dld_buf, 0, sizeof(struct dhd_log_dump_buf) * DLD_BUFFER_NUM);

    /* set the log dump buffer size based on the module_param */
    if (logdump_max_bufsize > LOG_DUMP_GENERAL_MAX_BUFSIZE ||
        logdump_max_bufsize <= 0) {
        dld_buf_size[DLD_BUF_TYPE_GENERAL] = LOG_DUMP_GENERAL_MAX_BUFSIZE;
    } else {
        dld_buf_size[DLD_BUF_TYPE_GENERAL] = logdump_max_bufsize;
    }

    /* pre-alloc the memory for the log buffers & 'special' buffer */
    dld_buf_special = &g_dld_buf[DLD_BUF_TYPE_SPECIAL];
#if defined(CONFIG_DHD_USE_STATIC_BUF) && defined(DHD_USE_STATIC_MEMDUMP)
    DHD_ERROR(("%s : Try to allocate memory total(%d) special(%d)\n",
               __FUNCTION__, LOG_DUMP_TOTAL_BUFSIZE,
               LOG_DUMP_SPECIAL_MAX_BUFSIZE));
    prealloc_buf = DHD_OS_PREALLOC(dhd, prealloc_idx++, LOG_DUMP_TOTAL_BUFSIZE);
    dld_buf_special->buffer = DHD_OS_PREALLOC(
        dhd, prealloc_idx++, dld_buf_size[DLD_BUF_TYPE_SPECIAL]);
#else
	prealloc_buf = MALLOCZ(dhd->osh, LOG_DUMP_TOTAL_BUFSIZE);
    dld_buf_special->buffer = MALLOCZ(dhd->osh, dld_buf_size[DLD_BUF_TYPE_SPECIAL]);
#endif /* CONFIG_DHD_USE_STATIC_BUF && DHD_USE_STATIC_MEMDUMP */
    if (!prealloc_buf) {
        DHD_ERROR(("Failed to pre-allocate memory for log buffers !\n"));
        goto fail;
    }
    if (!dld_buf_special->buffer) {
        DHD_ERROR(("Failed to pre-allocate memory for special buffer !\n"));
        goto fail;
    }

    bufptr = prealloc_buf;
    for (i = 0; i < DLD_BUFFER_NUM; i++) {
        dld_buf = &g_dld_buf[i];
        dld_buf->dhd_pub = dhd;
        spin_lock_init(&dld_buf->lock);
        dld_buf->wraparound = 0;
        if (i != DLD_BUF_TYPE_SPECIAL) {
            dld_buf->buffer = bufptr;
            dld_buf->max = (unsigned long)dld_buf->buffer + dld_buf_size[i];
            bufptr = (uint8 *)dld_buf->max;
        } else {
            dld_buf->max = (unsigned long)dld_buf->buffer + dld_buf_size[i];
        }
        dld_buf->present = dld_buf->front = dld_buf->buffer;
        dld_buf->remain = dld_buf_size[i];
        dld_buf->enable = 1;
    }

#ifdef EWP_ECNTRS_LOGGING
    /* now use the rest of the pre-alloc'd memory for filter and ecounter log */
    dhd->ecntr_dbg_ring = MALLOCZ(dhd->osh, sizeof(dhd_dbg_ring_t));
    if (!dhd->ecntr_dbg_ring) {
        goto fail;
    }

    ring = (dhd_dbg_ring_t *)dhd->ecntr_dbg_ring;
    ret = dhd_dbg_ring_init(dhd, ring, ECNTR_RING_ID, ECNTR_RING_NAME,
                            LOG_DUMP_ECNTRS_MAX_BUFSIZE, bufptr, TRUE);
    if (ret != BCME_OK) {
        DHD_ERROR(("%s: unable to init ecntr ring !\n", __FUNCTION__));
        goto fail;
    }
    DHD_DBG_RING_LOCK(ring->lock, flags);
    ring->state = RING_ACTIVE;
    ring->threshold = 0;
    DHD_DBG_RING_UNLOCK(ring->lock, flags);

    bufptr += LOG_DUMP_ECNTRS_MAX_BUFSIZE;
#endif /* EWP_ECNTRS_LOGGING */

#ifdef EWP_RTT_LOGGING
    /* now use the rest of the pre-alloc'd memory for filter and ecounter log */
    dhd->rtt_dbg_ring = MALLOCZ(dhd->osh, sizeof(dhd_dbg_ring_t));
    if (!dhd->rtt_dbg_ring) {
        goto fail;
    }

    ring = (dhd_dbg_ring_t *)dhd->rtt_dbg_ring;
    ret = dhd_dbg_ring_init(dhd, ring, RTT_RING_ID, RTT_RING_NAME,
                            LOG_DUMP_RTT_MAX_BUFSIZE, bufptr, TRUE);
    if (ret != BCME_OK) {
        DHD_ERROR(("%s: unable to init ecntr ring !\n", __FUNCTION__));
        goto fail;
    }
    DHD_DBG_RING_LOCK(ring->lock, flags);
    ring->state = RING_ACTIVE;
    ring->threshold = 0;
    DHD_DBG_RING_UNLOCK(ring->lock, flags);

    bufptr += LOG_DUMP_RTT_MAX_BUFSIZE;
#endif /* EWP_RTT_LOGGING */

    /* Concise buffer is used as intermediate buffer for following purposes
     * a) pull ecounters records temporarily before
     *  writing it to file
     * b) to store dhd dump data before putting it to file
     * It should have a size equal to
     * MAX(largest possible ecntr record, 'dhd dump' data size)
     */
    dhd->concise_dbg_buf = MALLOC(dhd->osh, CONCISE_DUMP_BUFLEN);
    if (!dhd->concise_dbg_buf) {
        DHD_ERROR(("%s: unable to alloc mem for concise debug info !\n",
                   __FUNCTION__));
        goto fail;
    }

    cookie_buf = MALLOC(dhd->osh, LOG_DUMP_COOKIE_BUFSIZE);
    if (!cookie_buf) {
        DHD_ERROR(("%s: unable to alloc mem for logdump cookie buffer\n",
                   __FUNCTION__));
        goto fail;
    }
    ret = dhd_logdump_cookie_init(dhd, cookie_buf, LOG_DUMP_COOKIE_BUFSIZE);
    if (ret != BCME_OK) {
        MFREE(dhd->osh, cookie_buf, LOG_DUMP_COOKIE_BUFSIZE);
        goto fail;
    }
    return;

fail:

    if (dhd->logdump_cookie) {
        dhd_logdump_cookie_deinit(dhd);
        MFREE(dhd->osh, dhd->logdump_cookie, LOG_DUMP_COOKIE_BUFSIZE);
        dhd->logdump_cookie = NULL;
    }

    if (dhd->concise_dbg_buf) {
        MFREE(dhd->osh, dhd->concise_dbg_buf, CONCISE_DUMP_BUFLEN);
    }

#ifdef EWP_ECNTRS_LOGGING
    if (dhd->ecntr_dbg_ring) {
        ring = (dhd_dbg_ring_t *)dhd->ecntr_dbg_ring;
        dhd_dbg_ring_deinit(dhd, ring);
        ring->ring_buf = NULL;
        ring->ring_size = 0;
        MFREE(dhd->osh, ring, sizeof(dhd_dbg_ring_t));
        dhd->ecntr_dbg_ring = NULL;
    }
#endif /* EWP_ECNTRS_LOGGING */

#ifdef EWP_RTT_LOGGING
    if (dhd->rtt_dbg_ring) {
        ring = (dhd_dbg_ring_t *)dhd->rtt_dbg_ring;
        dhd_dbg_ring_deinit(dhd, ring);
        ring->ring_buf = NULL;
        ring->ring_size = 0;
        MFREE(dhd->osh, ring, sizeof(dhd_dbg_ring_t));
        dhd->rtt_dbg_ring = NULL;
    }
#endif /* EWP_RTT_LOGGING */

#if defined(CONFIG_DHD_USE_STATIC_BUF) && defined(DHD_USE_STATIC_MEMDUMP)
    if (prealloc_buf) {
        DHD_OS_PREFREE(dhd, prealloc_buf, LOG_DUMP_TOTAL_BUFSIZE);
    }
    if (dld_buf_special->buffer) {
        DHD_OS_PREFREE(dhd, dld_buf_special->buffer,
                       dld_buf_size[DLD_BUF_TYPE_SPECIAL]);
    }
#else
	if (prealloc_buf) {
            MFREE(dhd->osh, prealloc_buf, LOG_DUMP_TOTAL_BUFSIZE);
    }
    if (dld_buf_special->buffer) {
            MFREE(dhd->osh, dld_buf_special->buffer,
                  dld_buf_size[DLD_BUF_TYPE_SPECIAL]);
    }
#endif /* CONFIG_DHD_USE_STATIC_BUF */
    for (i = 0; i < DLD_BUFFER_NUM; i++) {
        dld_buf = &g_dld_buf[i];
        dld_buf->enable = 0;
        dld_buf->buffer = NULL;
    }

    mutex_destroy(&dhd_info->logdump_lock);
}

void dhd_log_dump_deinit(dhd_pub_t *dhd)
{
    struct dhd_log_dump_buf *dld_buf = NULL, *dld_buf_special = NULL;
    int i = 0;
    dhd_info_t *dhd_info = dhd->info;
    dhd_dbg_ring_t *ring = NULL;

    BCM_REFERENCE(ring);

    if (dhd->concise_dbg_buf) {
        MFREE(dhd->osh, dhd->concise_dbg_buf, CONCISE_DUMP_BUFLEN);
        dhd->concise_dbg_buf = NULL;
    }

    if (dhd->logdump_cookie) {
        dhd_logdump_cookie_deinit(dhd);
        MFREE(dhd->osh, dhd->logdump_cookie, LOG_DUMP_COOKIE_BUFSIZE);
        dhd->logdump_cookie = NULL;
    }

#ifdef EWP_ECNTRS_LOGGING
    if (dhd->ecntr_dbg_ring) {
        ring = (dhd_dbg_ring_t *)dhd->ecntr_dbg_ring;
        dhd_dbg_ring_deinit(dhd, ring);
        ring->ring_buf = NULL;
        ring->ring_size = 0;
        MFREE(dhd->osh, ring, sizeof(dhd_dbg_ring_t));
        dhd->ecntr_dbg_ring = NULL;
    }
#endif /* EWP_ECNTRS_LOGGING */

#ifdef EWP_RTT_LOGGING
    if (dhd->rtt_dbg_ring) {
        ring = (dhd_dbg_ring_t *)dhd->rtt_dbg_ring;
        dhd_dbg_ring_deinit(dhd, ring);
        ring->ring_buf = NULL;
        ring->ring_size = 0;
        MFREE(dhd->osh, ring, sizeof(dhd_dbg_ring_t));
        dhd->rtt_dbg_ring = NULL;
    }
#endif /* EWP_RTT_LOGGING */

    /* 'general' buffer points to start of the pre-alloc'd memory */
    dld_buf = &g_dld_buf[DLD_BUF_TYPE_GENERAL];
    dld_buf_special = &g_dld_buf[DLD_BUF_TYPE_SPECIAL];
#if defined(CONFIG_DHD_USE_STATIC_BUF) && defined(DHD_USE_STATIC_MEMDUMP)
    if (dld_buf->buffer) {
        DHD_OS_PREFREE(dhd, dld_buf->buffer, LOG_DUMP_TOTAL_BUFSIZE);
    }
    if (dld_buf_special->buffer) {
        DHD_OS_PREFREE(dhd, dld_buf_special->buffer,
                       dld_buf_size[DLD_BUF_TYPE_SPECIAL]);
    }
#else
    if (dld_buf->buffer) {
        MFREE(dhd->osh, dld_buf->buffer, LOG_DUMP_TOTAL_BUFSIZE);
    }
    if (dld_buf_special->buffer) {
        MFREE(dhd->osh, dld_buf_special->buffer,
              dld_buf_size[DLD_BUF_TYPE_SPECIAL]);
    }
#endif /* CONFIG_DHD_USE_STATIC_BUF */
    for (i = 0; i < DLD_BUFFER_NUM; i++) {
        dld_buf = &g_dld_buf[i];
        dld_buf->enable = 0;
        dld_buf->buffer = NULL;
    }

    mutex_destroy(&dhd_info->logdump_lock);
}

void dhd_log_dump_write(int type, char *binary_data, int binary_len,
                        const char *fmt, ...)
{
    int len = 0;
    char tmp_buf[DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE] = {
        0,
    };
    va_list args;
    unsigned long flags = 0;
    struct dhd_log_dump_buf *dld_buf = NULL;
    bool flush_log = FALSE;

    if (type < 0 || type >= DLD_BUFFER_NUM) {
        DHD_INFO(
            ("%s: Unknown DHD_LOG_DUMP_BUF_TYPE(%d).\n", __FUNCTION__, type));
        return;
    }

    dld_buf = &g_dld_buf[type];

    if (dld_buf->enable != 1) {
        return;
    }

    va_start(args, fmt);
    len = vsnprintf(tmp_buf, DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE, fmt, args);
    /* Non ANSI C99 compliant returns -1,
     * ANSI compliant return len >= DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE
     */
    va_end(args);
    if (len < 0) {
        return;
    }

    if (len >= DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE) {
        len = DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE - 1;
        tmp_buf[len] = '\0';
    }

    /* make a critical section to eliminate race conditions */
    spin_lock_irqsave(&dld_buf->lock, flags);
    if (dld_buf->remain < len) {
        dld_buf->wraparound = 1;
        dld_buf->present = dld_buf->front;
        dld_buf->remain = dld_buf_size[type];
        /* if wrap around happens, flush the ring buffer to the file */
        flush_log = TRUE;
    }

    memcpy(dld_buf->present, tmp_buf, len);
    dld_buf->remain -= len;
    dld_buf->present += len;
    spin_unlock_irqrestore(&dld_buf->lock, flags);

    /* double check invalid memory operation */
    ASSERT((unsigned long)dld_buf->present <= dld_buf->max);

    if (dld_buf->dhd_pub) {
        dhd_pub_t *dhdp = (dhd_pub_t *)dld_buf->dhd_pub;
        dhdp->logdump_periodic_flush = logdump_periodic_flush;
        if (logdump_periodic_flush && flush_log) {
            log_dump_type_t *flush_type =
                MALLOCZ(dhdp->osh, sizeof(log_dump_type_t));
            if (flush_type) {
                *flush_type = type;
                dhd_schedule_log_dump(dld_buf->dhd_pub, flush_type);
            }
        }
    }
}

char *dhd_log_dump_get_timestamp(void)
{
    static char buf[16];
    u64 ts_nsec;
    unsigned long rem_nsec;

    ts_nsec = local_clock();
    rem_nsec = DIV_AND_MOD_U64_BY_U32(ts_nsec, NSEC_PER_SEC);
    snprintf(buf, sizeof(buf), "%5lu.%06lu", (unsigned long)ts_nsec,
             rem_nsec / NSEC_PER_USEC);

    return buf;
}
#endif /* DHD_LOG_DUMP */

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
void dhd_flush_rx_tx_wq(dhd_pub_t *dhdp)
{
    dhd_info_t *dhd;

    if (dhdp) {
        dhd = dhdp->info;
        if (dhd) {
            flush_workqueue(dhd->tx_wq);
            flush_workqueue(dhd->rx_wq);
        }
    }

    return;
}
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

#ifdef DHD_DEBUG_UART
bool dhd_debug_uart_is_running(struct net_device *dev)
{
    dhd_info_t *dhd = DHD_DEV_INFO(dev);

    if (dhd->duart_execute) {
        return TRUE;
    }

    return FALSE;
}

static void dhd_debug_uart_exec_rd(void *handle, void *event_info, u8 event)
{
    dhd_pub_t *dhdp = handle;
    dhd_debug_uart_exec(dhdp, "rd");
}

static void dhd_debug_uart_exec(dhd_pub_t *dhdp, char *cmd)
{
    int ret;

    char *argv[] = {DHD_DEBUG_UART_EXEC_PATH, cmd, NULL};
    char *envp[] = {"HOME=/", "TERM=linux", "PATH=/sbin:/system/bin", NULL};

#ifdef DHD_FW_COREDUMP
    if (dhdp->memdump_enabled == DUMP_MEMFILE_BUGON)
#endif // endif
    {
        if (dhdp->hang_reason == HANG_REASON_PCIE_LINK_DOWN_RC_DETECT ||
            dhdp->hang_reason == HANG_REASON_PCIE_LINK_DOWN_EP_DETECT ||
#ifdef DHD_FW_COREDUMP
            dhdp->memdump_success == FALSE ||
#endif // endif
            FALSE) {
            dhdp->info->duart_execute = TRUE;
            DHD_ERROR(("DHD: %s - execute %s %s\n", __FUNCTION__,
                       DHD_DEBUG_UART_EXEC_PATH, cmd));
            ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC);
            DHD_ERROR(("DHD: %s - %s %s ret = %d\n", __FUNCTION__,
                       DHD_DEBUG_UART_EXEC_PATH, cmd, ret));
            dhdp->info->duart_execute = FALSE;

#ifdef DHD_LOG_DUMP
            if (dhdp->memdump_type != DUMP_TYPE_BY_SYSDUMP)
#endif // endif
            {
                BUG_ON(1);
            }
        }
    }
}
#endif /* DHD_DEBUG_UART */

#if defined(DHD_BLOB_EXISTENCE_CHECK)
void dhd_set_blob_support(dhd_pub_t *dhdp, char *fw_path)
{
    struct file *fp;
    char *filepath = VENDOR_PATH CONFIG_BCMDHD_CLM_PATH;
    fp = filp_open(filepath, O_RDONLY, 0);
    if (IS_ERR(fp)) {
        DHD_ERROR(("%s: ----- blob file doesn't exist (%s) -----\n",
                   __FUNCTION__, filepath));
        dhdp->is_blob = FALSE;
    } else {
        DHD_ERROR(
            ("%s: ----- blob file exists (%s)-----\n", __FUNCTION__, filepath));
        dhdp->is_blob = TRUE;
#if defined(CONCATE_BLOB)
        strncat(fw_path, "_blob", strlen("_blob"));
#else
        BCM_REFERENCE(fw_path);
#endif /* SKIP_CONCATE_BLOB */
        filp_close(fp, NULL);
    }
}
#endif /* DHD_BLOB_EXISTENCE_CHECK */

#if defined(PCIE_FULL_DONGLE)
/** test / loopback */
void dmaxfer_free_dmaaddr_handler(void *handle, void *event_info, u8 event)
{
    dmaxref_mem_map_t *dmmap = (dmaxref_mem_map_t *)event_info;
    dhd_info_t *dhd_info = (dhd_info_t *)handle;

    if (event != DHD_WQ_WORK_DMA_LB_MEM_REL) {
        DHD_ERROR(("%s: Unexpected event \n", __FUNCTION__));
        return;
    }
    if (dhd_info == NULL) {
        DHD_ERROR(("%s: Invalid dhd_info\n", __FUNCTION__));
        return;
    }
    if (dmmap == NULL) {
        DHD_ERROR(("%s: dmmap is null\n", __FUNCTION__));
        return;
    }
    dmaxfer_free_prev_dmaaddr(&dhd_info->pub, dmmap);
}

void dhd_schedule_dmaxfer_free(dhd_pub_t *dhdp, dmaxref_mem_map_t *dmmap)
{
    dhd_info_t *dhd_info = dhdp->info;

    dhd_deferred_schedule_work(
        dhd_info->dhd_deferred_wq, (void *)dmmap, DHD_WQ_WORK_DMA_LB_MEM_REL,
        dmaxfer_free_dmaaddr_handler, DHD_WQ_WORK_PRIORITY_LOW);
}
#endif /* PCIE_FULL_DONGLE */
/* ---------------------------- End of sysfs implementation
 * ------------------------------------- */

#ifdef SET_PCIE_IRQ_CPU_CORE
void dhd_set_irq_cpucore(dhd_pub_t *dhdp, int affinity_cmd)
{
    unsigned int pcie_irq = 0;

    if (!dhdp) {
        DHD_ERROR(("%s : dhd is NULL\n", __FUNCTION__));
        return;
    }

    if (!dhdp->bus) {
        DHD_ERROR(("%s : dhd->bus is NULL\n", __FUNCTION__));
        return;
    }

    DHD_ERROR(
        ("Enter %s, PCIe affinity cmd=0x%x\n", __FUNCTION__, affinity_cmd));

    if (dhdpcie_get_pcieirq(dhdp->bus, &pcie_irq)) {
        DHD_ERROR(("%s : Can't get interrupt number\n", __FUNCTION__));
        return;
    }

    /*
        irq_set_affinity() assign dedicated CPU core PCIe interrupt
        If dedicated CPU core is not on-line,
        PCIe interrupt scheduled on CPU core 0
    */
    switch (affinity_cmd) {
        case PCIE_IRQ_AFFINITY_OFF:
            break;
        case PCIE_IRQ_AFFINITY_BIG_CORE_ANY:
#if defined(CONFIG_ARCH_SM8150)
            irq_set_affinity_hint(pcie_irq, dhdp->info->cpumask_primary);
            irq_set_affinity(pcie_irq, dhdp->info->cpumask_primary);
#else  /* Exynos and Others */
            irq_set_affinity(pcie_irq, dhdp->info->cpumask_primary);
#endif /* CONFIG_ARCH_SM8150 */
            break;
#if defined(CONFIG_SOC_EXYNOS9810) || defined(CONFIG_SOC_EXYNOS9820)
        case PCIE_IRQ_AFFINITY_BIG_CORE_EXYNOS:
            DHD_ERROR(("%s, PCIe IRQ:%u set Core %d\n", __FUNCTION__, pcie_irq,
                       PCIE_IRQ_CPU_CORE));
            irq_set_affinity(pcie_irq, cpumask_of(PCIE_IRQ_CPU_CORE));
            break;
#endif /* CONFIG_SOC_EXYNOS9810 || CONFIG_SOC_EXYNOS9820 */
        default:
            DHD_ERROR(("%s, Unknown PCIe affinity cmd=0x%x\n", __FUNCTION__,
                       affinity_cmd));
    }
}
#endif /* SET_PCIE_IRQ_CPU_CORE */

int dhd_write_file(const char *filepath, char *buf, int buf_len)
{
    struct file *fp = NULL;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    mm_segment_t old_fs;
#endif
    int ret = 0;

    /* change to KERNEL_DS address limit */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    old_fs = get_fs();
    set_fs(KERNEL_DS);
#endif

    /* File is always created. */
    fp = filp_open(filepath, O_RDWR | O_CREAT, 0664);
    if (IS_ERR(fp)) {
        DHD_ERROR(("%s: Couldn't open file '%s' err %ld\n", __FUNCTION__,
                   filepath, PTR_ERR(fp)));
        ret = BCME_ERROR;
    } else {
        if (fp->f_mode & FMODE_WRITE) {
            ret = compat_vfs_write(fp, buf, buf_len, &fp->f_pos);
            if (ret < 0) {
                DHD_ERROR(
                    ("%s: Couldn't write file '%s'\n", __FUNCTION__, filepath));
                ret = BCME_ERROR;
            } else {
                ret = BCME_OK;
            }
        }
        filp_close(fp, NULL);
    }

    /* restore previous address limit */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    set_fs(old_fs);
#endif

    return ret;
}

int dhd_read_file(const char *filepath, char *buf, int buf_len)
{
    struct file *fp = NULL;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    mm_segment_t old_fs;
#endif
    int ret;

    /* change to KERNEL_DS address limit */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    old_fs = get_fs();
    set_fs(KERNEL_DS);
#endif

    fp = filp_open(filepath, O_RDONLY, 0);
    if (IS_ERR(fp)) {
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
        set_fs(old_fs);
#endif
        DHD_ERROR(("%s: File %s doesn't exist\n", __FUNCTION__, filepath));
        return BCME_ERROR;
    }

    ret = compat_kernel_read(fp, 0, buf, buf_len);
    filp_close(fp, NULL);

    /* restore previous address limit */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
    set_fs(old_fs);
#endif

    /* Return the number of bytes read */
    if (ret > 0) {
        /* Success to read */
        ret = 0;
    } else {
        DHD_ERROR(("%s: Couldn't read the file %s, ret=%d\n", __FUNCTION__,
                   filepath, ret));
        ret = BCME_ERROR;
    }

    return ret;
}

int dhd_write_file_and_check(const char *filepath, char *buf, int buf_len)
{
    int ret;

    ret = dhd_write_file(filepath, buf, buf_len);
    if (ret < 0) {
        return ret;
    }

    /* Read the file again and check if the file size is not zero */
    memset(buf, 0, buf_len);
    ret = dhd_read_file(filepath, buf, buf_len);

    return ret;
}

#ifdef FILTER_IE
int dhd_read_from_file(dhd_pub_t *dhd)
{
    int ret = 0, nread = 0;
    void *fd;
    uint8 *buf;
    NULL_CHECK(dhd, "dhd is NULL", ret);

    buf = MALLOCZ(dhd->osh, FILE_BLOCK_READ_SIZE);
    if (!buf) {
        DHD_ERROR(("error: failed to alllocate buf.\n"));
        return BCME_NOMEM;
    }

    /* open file to read */
    fd = dhd_os_open_image1(dhd, FILTER_IE_PATH);
    if (!fd) {
        DHD_ERROR(("error: failed to open %s\n", FILTER_IE_PATH));
        ret = BCME_EPERM;
        goto exit;
    }
    nread = dhd_os_get_image_block(buf, (FILE_BLOCK_READ_SIZE - 1), fd);
    if (nread > 0) {
        buf[nread] = '\0';
        if ((ret = dhd_parse_filter_ie(dhd, buf)) < 0) {
            DHD_ERROR(("error: failed to parse filter ie\n"));
        }
    } else {
        DHD_ERROR(("error: zero length file.failed to read\n"));
        ret = BCME_ERROR;
    }
    dhd_os_close_image1(dhd, fd);
exit:
    if (buf) {
        MFREE(dhd->osh, buf, FILE_BLOCK_READ_SIZE);
        buf = NULL;
    }
    return ret;
}

int dhd_get_filter_ie_count(dhd_pub_t *dhdp, uint8 *buf)
{
    uint8 *pstr = buf;
    int element_count = 0;

    if (buf == NULL) {
        return BCME_ERROR;
    }

    while (*pstr != '\0') {
        if (*pstr == '\n') {
            element_count++;
        }
        pstr++;
    }
    /*
     * New line character must not be present after last line.
     * To count last line
     */
    element_count++;

    return element_count;
}

int dhd_parse_oui(dhd_pub_t *dhd, uint8 *inbuf, uint8 *oui, int len)
{
    uint8 i, j, msb, lsb, oui_len = 0;
    /*
     * OUI can vary from 3 bytes to 5 bytes.
     * While reading from file as ascii input it can
     * take maximum size of 14 bytes and minumum size of
     * 8 bytes including ":"
     * Example 5byte OUI <AB:DE:BE:CD:FA>
     * Example 3byte OUI <AB:DC:EF>
     */

    if ((inbuf == NULL) || (len < 0x8) || (len > 0xE)) {
        DHD_ERROR(("error: failed to parse OUI \n"));
        return BCME_ERROR;
    }

    for (j = 0, i = 0; i < len; i += 0x3, ++j) {
        if (!bcm_isxdigit(inbuf[i]) || !bcm_isxdigit(inbuf[i + 1])) {
            DHD_ERROR(("error: invalid OUI format \n"));
            return BCME_ERROR;
        }
        msb =
            inbuf[i] > '9' ? bcm_toupper(inbuf[i]) - 'A' + 0xA : inbuf[i] - '0';
        lsb = inbuf[i + 1] > '9' ? bcm_toupper(inbuf[i + 1]) - 'A' + 0xA
                                 : inbuf[i + 1] - '0';
        oui[j] = (msb << 0x4) | lsb;
    }
    /* Size of oui.It can vary from 3/4/5 */
    oui_len = j;

    return oui_len;
}

int dhd_check_valid_ie(dhd_pub_t *dhdp, uint8 *buf, int len)
{
    int i = 0;

    while (i < len) {
        if (!bcm_isdigit(buf[i])) {
            DHD_ERROR(("error: non digit value found in filter_ie \n"));
            return BCME_ERROR;
        }
        i++;
    }
    if (bcm_atoi((char *)buf) > 0xFF) {
        DHD_ERROR(("error: element id cannot be greater than 255 \n"));
        return BCME_ERROR;
    }

    return BCME_OK;
}

int dhd_parse_filter_ie(dhd_pub_t *dhd, uint8 *buf)
{
    int element_count = 0, i = 0, oui_size = 0, ret = 0;
    uint16 bufsize, buf_space_left, id = 0, len = 0;
    uint16 filter_iovsize, all_tlvsize;
    wl_filter_ie_tlv_t *p_ie_tlv = NULL;
    wl_filter_ie_iov_v1_t *p_filter_iov = (wl_filter_ie_iov_v1_t *)NULL;
    char *token = NULL, *ele_token = NULL, *oui_token = NULL, *type = NULL;
    uint8 data[20];

    element_count = dhd_get_filter_ie_count(dhd, buf);
    DHD_INFO(("total element count %d \n", element_count));
    /* Calculate the whole buffer size */
    filter_iovsize = sizeof(wl_filter_ie_iov_v1_t) + FILTER_IE_BUFSZ;
    p_filter_iov = MALLOCZ(dhd->osh, filter_iovsize);
    if (p_filter_iov == NULL) {
        DHD_ERROR(
            ("error: failed to allocate %d bytes of memory\n", filter_iovsize));
        return BCME_ERROR;
    }
    /* setup filter iovar header */
    p_filter_iov->version = WL_FILTER_IE_VERSION;
    p_filter_iov->len = filter_iovsize;
    p_filter_iov->fixed_length = p_filter_iov->len - FILTER_IE_BUFSZ;
    p_filter_iov->pktflag = FC_PROBE_REQ;
    p_filter_iov->option = WL_FILTER_IE_CHECK_SUB_OPTION;
    /* setup TLVs */
    bufsize = filter_iovsize -
              WL_FILTER_IE_IOV_HDR_SIZE; /* adjust available size for TLVs */
    p_ie_tlv = (wl_filter_ie_tlv_t *)&p_filter_iov->tlvs[0];
    buf_space_left = bufsize;

    while ((i < element_count) && (buf != NULL)) {
        len = 0;
        /* token contains one line of input data */
        token = bcmstrtok((char **)&buf, "\n", NULL);
        if (token == NULL) {
            break;
        }
        if ((ele_token = bcmstrstr(token, ",")) == NULL) {
            /* only element id is present */
            if (dhd_check_valid_ie(dhd, token, strlen(token)) == BCME_ERROR) {
                DHD_ERROR(("error: Invalid element id \n"));
                ret = BCME_ERROR;
                goto exit;
            }
            id = bcm_atoi((char *)token);
            data[len++] = WL_FILTER_IE_SET;
        } else {
            /* oui is present */
            ele_token = bcmstrtok(&token, ",", NULL);
            if ((ele_token == NULL) ||
                (dhd_check_valid_ie(dhd, ele_token, strlen(ele_token)) ==
                 BCME_ERROR)) {
                DHD_ERROR(("error: Invalid element id \n"));
                ret = BCME_ERROR;
                goto exit;
            }
            id = bcm_atoi((char *)ele_token);
            data[len++] = WL_FILTER_IE_SET;
            if ((oui_token = bcmstrstr(token, ",")) == NULL) {
                oui_size =
                    dhd_parse_oui(dhd, token, &(data[len]), strlen(token));
                if (oui_size == BCME_ERROR) {
                    DHD_ERROR(("error: Invalid OUI \n"));
                    ret = BCME_ERROR;
                    goto exit;
                }
                len += oui_size;
            } else {
                /* type is present */
                oui_token = bcmstrtok(&token, ",", NULL);
                if ((oui_token == NULL) ||
                    ((oui_size = dhd_parse_oui(dhd, oui_token, &(data[len]),
                                               strlen(oui_token))) ==
                     BCME_ERROR)) {
                    DHD_ERROR(("error: Invalid OUI \n"));
                    ret = BCME_ERROR;
                    goto exit;
                }
                len += oui_size;
                if ((type = bcmstrstr(token, ",")) == NULL) {
                    if (dhd_check_valid_ie(dhd, token, strlen(token)) ==
                        BCME_ERROR) {
                        DHD_ERROR(("error: Invalid type \n"));
                        ret = BCME_ERROR;
                        goto exit;
                    }
                    data[len++] = bcm_atoi((char *)token);
                } else {
                    /* subtype is present */
                    type = bcmstrtok(&token, ",", NULL);
                    if ((type == NULL) ||
                        (dhd_check_valid_ie(dhd, type, strlen(type)) ==
                         BCME_ERROR)) {
                        DHD_ERROR(("error: Invalid type \n"));
                        ret = BCME_ERROR;
                        goto exit;
                    }
                    data[len++] = bcm_atoi((char *)type);
                    /* subtype is last element */
                    if ((token == NULL) || (*token == '\0') ||
                        (dhd_check_valid_ie(dhd, token, strlen(token)) ==
                         BCME_ERROR)) {
                        DHD_ERROR(("error: Invalid subtype \n"));
                        ret = BCME_ERROR;
                        goto exit;
                    }
                    data[len++] = bcm_atoi((char *)token);
                }
            }
        }
        ret = bcm_pack_xtlv_entry((uint8 **)&p_ie_tlv, &buf_space_left, id, len,
                                  data, BCM_XTLV_OPTION_ALIGN32);
        if (ret != BCME_OK) {
            DHD_ERROR(("%s : bcm_pack_xtlv_entry() failed ,"
                       "status=%d\n",
                       __FUNCTION__, ret));
            goto exit;
        }
        i++;
    }
    if (i == 0) {
        /* file is empty or first line is blank */
        DHD_ERROR(("error: filter_ie file is empty or first line is blank \n"));
        ret = BCME_ERROR;
        goto exit;
    }
    /* update the iov header, set len to include all TLVs + header */
    all_tlvsize = (bufsize - buf_space_left);
    p_filter_iov->len = htol16(all_tlvsize + WL_FILTER_IE_IOV_HDR_SIZE);
    ret = dhd_iovar(dhd, 0, "filter_ie", (void *)p_filter_iov,
                    p_filter_iov->len, NULL, 0, TRUE);
    if (ret != BCME_OK) {
        DHD_ERROR(("error: IOVAR failed, status=%d\n", ret));
    }
exit:
    /* clean up */
    if (p_filter_iov) {
        MFREE(dhd->osh, p_filter_iov, filter_iovsize);
        p_filter_iov = NULL;
    }
    return ret;
}
#endif /* FILTER_IE */
#ifdef DHD_WAKE_STATUS
wake_counts_t *dhd_get_wakecount(dhd_pub_t *dhdp)
{
#ifdef BCMDBUS
    return NULL;
#else
    return dhd_bus_get_wakecount(dhdp);
#endif /* BCMDBUS */
}
#endif /* DHD_WAKE_STATUS */

int dhd_get_random_bytes(uint8 *buf, uint len)
{
#ifdef BCMPCIE
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 19, 0))
    int rndlen = get_random_bytes_arch(buf, len);
    if (rndlen != len) {
        bzero(buf, len);
        get_random_bytes(buf, len);
    }
#else
    get_random_bytes_arch(buf, len);
#endif // endif
#endif /* BCMPCIE */
    return BCME_OK;
}

#ifdef DHD_ERPOM
static void dhd_error_recovery(void *handle, void *event_info, u8 event)
{
    dhd_info_t *dhd = handle;
    dhd_pub_t *dhdp;
    int ret = 0;

    if (!dhd) {
        DHD_ERROR(("%s: dhd is NULL\n", __FUNCTION__));
        return;
    }

    dhdp = &dhd->pub;

    if (!(dhd->dhd_state & DHD_ATTACH_STATE_DONE)) {
        DHD_ERROR(("%s: init not completed, cannot initiate recovery\n",
                   __FUNCTION__));
        return;
    }

    ret = dhd_bus_perform_flr_with_quiesce(dhdp, dhdp->bus, FALSE);
    if (ret != BCME_DNGL_DEVRESET) {
        DHD_ERROR(("%s: dhd_bus_perform_flr_with_quiesce failed with ret: %d,"
                   "toggle REG_ON\n",
                   __FUNCTION__, ret));
        /* toggle REG_ON */
        dhdp->pom_toggle_reg_on(WLAN_FUNC_ID, BY_WLAN_DUE_TO_WLAN);
        return;
    }
}

void dhd_schedule_reset(dhd_pub_t *dhdp)
{
    if (dhdp->enable_erpom) {
        dhd_deferred_schedule_work(
            dhdp->info->dhd_deferred_wq, NULL, DHD_WQ_WORK_ERROR_RECOVERY,
            dhd_error_recovery, DHD_WQ_WORK_PRIORITY_HIGH);
    }
}
#endif /* DHD_ERPOM */

void get_debug_dump_time(char *str)
{
    struct osl_timespec curtime;
    unsigned long local_time;
    struct rtc_time tm;

    if (!strlen(str)) {
        osl_do_gettimeofday(&curtime);
        local_time = (u32)(curtime.tv_sec - (sys_tz.tz_minuteswest *
                                             DHD_LOG_DUMP_TS_MULTIPLIER_VALUE));
        rtc_time_to_tm(local_time, &tm);

        snprintf(str, DEBUG_DUMP_TIME_BUF_LEN,
                 DHD_LOG_DUMP_TS_FMT_YYMMDDHHMMSSMSMS, tm.tm_year - 0x64,
                 tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec,
                 (int)(curtime.tv_usec / NSEC_PER_USEC));
    }
}

void clear_debug_dump_time(char *str)
{
    memset(str, 0, DEBUG_DUMP_TIME_BUF_LEN);
}

void dhd_print_tasklet_status(dhd_pub_t *dhd)
{
    dhd_info_t *dhdinfo;

    if (!dhd) {
        DHD_ERROR(("%s : DHD is null\n", __FUNCTION__));
        return;
    }

    dhdinfo = dhd->info;

    if (!dhdinfo) {
        DHD_ERROR(("%s : DHD INFO is null \n", __FUNCTION__));
        return;
    }

    DHD_ERROR(("DHD Tasklet status : 0x%lx\n", dhdinfo->tasklet.state));
}

/*
 * DHD RING
 */
#define DHD_RING_ERR_INTERNAL(fmt, ...) DHD_ERROR(("EWPF-" fmt, ##__VA_ARGS__))
#define DHD_RING_TRACE_INTERNAL(fmt, ...) DHD_INFO(("EWPF-" fmt, ##__VA_ARGS__))

#define DHD_RING_ERR(x) DHD_RING_ERR_INTERNAL x
#define DHD_RING_TRACE(x) DHD_RING_TRACE_INTERNAL x

#define DHD_RING_MAGIC 0x20170910
#define DHD_RING_IDX_INVALID 0xffffffff

#define DHD_RING_SYNC_LOCK_INIT(osh) dhd_os_spin_lock_init(osh)
#define DHD_RING_SYNC_LOCK_DEINIT(osh, lock) dhd_os_spin_lock_deinit(osh, lock)
#define DHD_RING_SYNC_LOCK(lock, flags) (flags) = dhd_os_spin_lock(lock)
#define DHD_RING_SYNC_UNLOCK(lock, flags) dhd_os_spin_unlock(lock, flags)

typedef struct {
    uint32 elem_size;
    uint32 elem_cnt;
    uint32 write_idx; /* next write index, -1 : not started */
    uint32 read_idx;  /* next read index, -1 : not start */

    /* protected elements during serialization */
    int lock_idx;   /* start index of locked, element will not be overried */
    int lock_count; /* number of locked, from lock idx */

    /* saved data elements */
    void *elem;
} dhd_fixed_ring_info_t;

typedef struct {
    uint32 elem_size;
    uint32 elem_cnt;
    uint32 idx;  /* -1 : not started */
    uint32 rsvd; /* reserved for future use */

    /* protected elements during serialization */
    atomic_t ring_locked;
    /* check the overwriting */
    uint32 ring_overwrited;

    /* saved data elements */
    void *elem;
} dhd_singleidx_ring_info_t;

typedef struct {
    uint32 magic;
    uint32 type;
    void *ring_sync; /* spinlock for sync */
    union {
        dhd_fixed_ring_info_t fixed;
        dhd_singleidx_ring_info_t single;
    };
} dhd_ring_info_t;

uint32 dhd_ring_get_hdr_size(void)
{
    return sizeof(dhd_ring_info_t);
}

void *dhd_ring_init(dhd_pub_t *dhdp, uint8 *buf, uint32 buf_size,
                    uint32 elem_size, uint32 elem_cnt, uint32 type)
{
    dhd_ring_info_t *ret_ring;

    if (!buf) {
        DHD_RING_ERR(("NO RING BUFFER\n"));
        return NULL;
    }

    if (buf_size < dhd_ring_get_hdr_size() + elem_size * elem_cnt) {
        DHD_RING_ERR(("RING SIZE IS TOO SMALL\n"));
        return NULL;
    }

    if (type != DHD_RING_TYPE_FIXED && type != DHD_RING_TYPE_SINGLE_IDX) {
        DHD_RING_ERR(("UNSUPPORTED RING TYPE\n"));
        return NULL;
    }

    ret_ring = (dhd_ring_info_t *)buf;
    ret_ring->type = type;
    ret_ring->ring_sync = DHD_RING_SYNC_LOCK_INIT(dhdp->osh);
    ret_ring->magic = DHD_RING_MAGIC;

    if (type == DHD_RING_TYPE_FIXED) {
        ret_ring->fixed.read_idx = DHD_RING_IDX_INVALID;
        ret_ring->fixed.write_idx = DHD_RING_IDX_INVALID;
        ret_ring->fixed.lock_idx = DHD_RING_IDX_INVALID;
        ret_ring->fixed.elem = buf + sizeof(dhd_ring_info_t);
        ret_ring->fixed.elem_size = elem_size;
        ret_ring->fixed.elem_cnt = elem_cnt;
    } else {
        ret_ring->single.idx = DHD_RING_IDX_INVALID;
        atomic_set(&ret_ring->single.ring_locked, 0);
        ret_ring->single.ring_overwrited = 0;
        ret_ring->single.rsvd = 0;
        ret_ring->single.elem = buf + sizeof(dhd_ring_info_t);
        ret_ring->single.elem_size = elem_size;
        ret_ring->single.elem_cnt = elem_cnt;
    }

    return ret_ring;
}

void dhd_ring_deinit(dhd_pub_t *dhdp, void *_ring)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    if (!ring) {
        return;
    }

    if (ring->magic != DHD_RING_MAGIC) {
        return;
    }

    if (ring->type != DHD_RING_TYPE_FIXED &&
        ring->type != DHD_RING_TYPE_SINGLE_IDX) {
        return;
    }

    DHD_RING_SYNC_LOCK_DEINIT(dhdp->osh, ring->ring_sync);
    ring->ring_sync = NULL;
    if (ring->type == DHD_RING_TYPE_FIXED) {
        dhd_fixed_ring_info_t *fixed = &ring->fixed;
        memset(fixed->elem, 0, fixed->elem_size * fixed->elem_cnt);
        fixed->elem_size = fixed->elem_cnt = 0;
    } else {
        dhd_singleidx_ring_info_t *single = &ring->single;
        memset(single->elem, 0, single->elem_size * single->elem_cnt);
        single->elem_size = single->elem_cnt = 0;
    }
    ring->type = 0;
    ring->magic = 0;
}

static inline uint32 __dhd_ring_ptr2idx(void *ring, void *ptr, char *sig,
                                        uint32 type)
{
    uint32 diff;
    uint32 ret_idx = (uint32)DHD_RING_IDX_INVALID;
    uint32 elem_size, elem_cnt;
    void *elem;

    if (type == DHD_RING_TYPE_FIXED) {
        dhd_fixed_ring_info_t *fixed = (dhd_fixed_ring_info_t *)ring;
        elem_size = fixed->elem_size;
        elem_cnt = fixed->elem_cnt;
        elem = fixed->elem;
    } else if (type == DHD_RING_TYPE_SINGLE_IDX) {
        dhd_singleidx_ring_info_t *single = (dhd_singleidx_ring_info_t *)ring;
        elem_size = single->elem_size;
        elem_cnt = single->elem_cnt;
        elem = single->elem;
    } else {
        DHD_RING_ERR(("UNSUPPORTED RING TYPE %d\n", type));
        return ret_idx;
    }

    if (ptr < elem) {
        DHD_RING_ERR(
            ("INVALID POINTER %s:%p, ring->elem:%p\n", sig, ptr, elem));
        return ret_idx;
    }
    diff = (uint32)((uint8 *)ptr - (uint8 *)elem);
    if (diff % elem_size != 0) {
        DHD_RING_ERR(
            ("INVALID POINTER %s:%p, ring->elem:%p\n", sig, ptr, elem));
        return ret_idx;
    }
    ret_idx = diff / elem_size;
    if (ret_idx >= elem_cnt) {
        DHD_RING_ERR(("INVALID POINTER max:%d cur:%d\n", elem_cnt, ret_idx));
    }
    return ret_idx;
}

/* Sub functions for fixed ring */
/* get counts between two indexes of ring buffer (internal only) */
static inline int __dhd_fixed_ring_get_count(dhd_fixed_ring_info_t *ring,
                                             int start, int end)
{
    if (start == DHD_RING_IDX_INVALID || end == DHD_RING_IDX_INVALID) {
        return 0;
    }

    return (ring->elem_cnt + end - start) % ring->elem_cnt + 1;
}

static inline int __dhd_fixed_ring_get_cur_size(dhd_fixed_ring_info_t *ring)
{
    return __dhd_fixed_ring_get_count(ring, ring->read_idx, ring->write_idx);
}

static inline void *__dhd_fixed_ring_get_first(dhd_fixed_ring_info_t *ring)
{
    if (ring->read_idx == DHD_RING_IDX_INVALID) {
        return NULL;
    }
    return (uint8 *)ring->elem + (ring->elem_size * ring->read_idx);
}

static inline void __dhd_fixed_ring_free_first(dhd_fixed_ring_info_t *ring)
{
    uint32 next_idx;

    if (ring->read_idx == DHD_RING_IDX_INVALID) {
        DHD_RING_ERR(("EMPTY RING\n"));
        return;
    }

    next_idx = (ring->read_idx + 1) % ring->elem_cnt;
    if (ring->read_idx == ring->write_idx) {
        /* Become empty */
        ring->read_idx = ring->write_idx = DHD_RING_IDX_INVALID;
        return;
    }

    ring->read_idx = next_idx;
    return;
}

static inline void *__dhd_fixed_ring_get_last(dhd_fixed_ring_info_t *ring)
{
    if (ring->read_idx == DHD_RING_IDX_INVALID) {
        return NULL;
    }
    return (uint8 *)ring->elem + (ring->elem_size * ring->write_idx);
}

static inline void *__dhd_fixed_ring_get_empty(dhd_fixed_ring_info_t *ring)
{
    uint32 tmp_idx;

    if (ring->read_idx == DHD_RING_IDX_INVALID) {
        ring->read_idx = ring->write_idx = 0;
        return (uint8 *)ring->elem;
    }

    /* check next index is not locked */
    tmp_idx = (ring->write_idx + 1) % ring->elem_cnt;
    if (ring->lock_idx == tmp_idx) {
        return NULL;
    }

    ring->write_idx = tmp_idx;
    if (ring->write_idx == ring->read_idx) {
        /* record is full, drop oldest one */
        ring->read_idx = (ring->read_idx + 1) % ring->elem_cnt;
    }
    return (uint8 *)ring->elem + (ring->elem_size * ring->write_idx);
}

static inline void *__dhd_fixed_ring_get_next(dhd_fixed_ring_info_t *ring,
                                              void *prev, uint32 type)
{
    uint32 cur_idx;

    if (ring->read_idx == DHD_RING_IDX_INVALID) {
        DHD_RING_ERR(("EMPTY RING\n"));
        return NULL;
    }

    cur_idx = __dhd_ring_ptr2idx(ring, prev, "NEXT", type);
    if (cur_idx >= ring->elem_cnt) {
        return NULL;
    }

    if (cur_idx == ring->write_idx) {
        /* no more new record */
        return NULL;
    }

    cur_idx = (cur_idx + 1) % ring->elem_cnt;
    return (uint8 *)ring->elem + ring->elem_size * cur_idx;
}

static inline void *__dhd_fixed_ring_get_prev(dhd_fixed_ring_info_t *ring,
                                              void *prev, uint32 type)
{
    uint32 cur_idx;

    if (ring->read_idx == DHD_RING_IDX_INVALID) {
        DHD_RING_ERR(("EMPTY RING\n"));
        return NULL;
    }
    cur_idx = __dhd_ring_ptr2idx(ring, prev, "PREV", type);
    if (cur_idx >= ring->elem_cnt) {
        return NULL;
    }
    if (cur_idx == ring->read_idx) {
        /* no more new record */
        return NULL;
    }

    cur_idx = (cur_idx + ring->elem_cnt - 1) % ring->elem_cnt;
    return (uint8 *)ring->elem + ring->elem_size * cur_idx;
}

static inline void __dhd_fixed_ring_lock(dhd_fixed_ring_info_t *ring,
                                         void *first_ptr, void *last_ptr,
                                         uint32 type)
{
    uint32 first_idx;
    uint32 last_idx;
    uint32 ring_filled_cnt;
    uint32 tmp_cnt;

    if (ring->read_idx == DHD_RING_IDX_INVALID) {
        DHD_RING_ERR(("EMPTY RING\n"));
        return;
    }

    if (first_ptr) {
        first_idx = __dhd_ring_ptr2idx(ring, first_ptr, "LCK FIRST", type);
        if (first_idx >= ring->elem_cnt) {
            return;
        }
    } else {
        first_idx = ring->read_idx;
    }

    if (last_ptr) {
        last_idx = __dhd_ring_ptr2idx(ring, last_ptr, "LCK LAST", type);
        if (last_idx >= ring->elem_cnt) {
            return;
        }
    } else {
        last_idx = ring->write_idx;
    }

    ring_filled_cnt =
        __dhd_fixed_ring_get_count(ring, ring->read_idx, ring->write_idx);
    tmp_cnt = __dhd_fixed_ring_get_count(ring, ring->read_idx, first_idx);
    if (tmp_cnt > ring_filled_cnt) {
        DHD_RING_ERR(
            ("LOCK FIRST IS TO EMPTY ELEM: write: %d read: %d cur:%d\n",
             ring->write_idx, ring->read_idx, first_idx));
        return;
    }

    tmp_cnt = __dhd_fixed_ring_get_count(ring, ring->read_idx, last_idx);
    if (tmp_cnt > ring_filled_cnt) {
        DHD_RING_ERR(("LOCK LAST IS TO EMPTY ELEM: write: %d read: %d cur:%d\n",
                      ring->write_idx, ring->read_idx, last_idx));
        return;
    }

    ring->lock_idx = first_idx;
    ring->lock_count = __dhd_fixed_ring_get_count(ring, first_idx, last_idx);
    return;
}

static inline void __dhd_fixed_ring_lock_free(dhd_fixed_ring_info_t *ring)
{
    if (ring->read_idx == DHD_RING_IDX_INVALID) {
        DHD_RING_ERR(("EMPTY RING\n"));
        return;
    }

    ring->lock_idx = DHD_RING_IDX_INVALID;
    ring->lock_count = 0;
    return;
}
static inline void *__dhd_fixed_ring_lock_get_first(dhd_fixed_ring_info_t *ring)
{
    if (ring->read_idx == DHD_RING_IDX_INVALID) {
        DHD_RING_ERR(("EMPTY RING\n"));
        return NULL;
    }
    if (ring->lock_idx == DHD_RING_IDX_INVALID) {
        DHD_RING_ERR(("NO LOCK POINT\n"));
        return NULL;
    }
    return (uint8 *)ring->elem + ring->elem_size * ring->lock_idx;
}

static inline void *__dhd_fixed_ring_lock_get_last(dhd_fixed_ring_info_t *ring)
{
    int lock_last_idx;
    if (ring->read_idx == DHD_RING_IDX_INVALID) {
        DHD_RING_ERR(("EMPTY RING\n"));
        return NULL;
    }
    if (ring->lock_idx == DHD_RING_IDX_INVALID) {
        DHD_RING_ERR(("NO LOCK POINT\n"));
        return NULL;
    }

    lock_last_idx = (ring->lock_idx + ring->lock_count - 1) % ring->elem_cnt;
    return (uint8 *)ring->elem + ring->elem_size * lock_last_idx;
}

static inline int __dhd_fixed_ring_lock_get_count(dhd_fixed_ring_info_t *ring)
{
    if (ring->read_idx == DHD_RING_IDX_INVALID) {
        DHD_RING_ERR(("EMPTY RING\n"));
        return BCME_ERROR;
    }
    if (ring->lock_idx == DHD_RING_IDX_INVALID) {
        DHD_RING_ERR(("NO LOCK POINT\n"));
        return BCME_ERROR;
    }
    return ring->lock_count;
}

static inline void __dhd_fixed_ring_lock_free_first(dhd_fixed_ring_info_t *ring)
{
    if (ring->read_idx == DHD_RING_IDX_INVALID) {
        DHD_RING_ERR(("EMPTY RING\n"));
        return;
    }
    if (ring->lock_idx == DHD_RING_IDX_INVALID) {
        DHD_RING_ERR(("NO LOCK POINT\n"));
        return;
    }

    ring->lock_count--;
    if (ring->lock_count <= 0) {
        ring->lock_idx = DHD_RING_IDX_INVALID;
    } else {
        ring->lock_idx = (ring->lock_idx + 1) % ring->elem_cnt;
    }
    return;
}

static inline void __dhd_fixed_ring_set_read_idx(dhd_fixed_ring_info_t *ring,
                                                 uint32 idx)
{
    ring->read_idx = idx;
}

static inline void __dhd_fixed_ring_set_write_idx(dhd_fixed_ring_info_t *ring,
                                                  uint32 idx)
{
    ring->write_idx = idx;
}

static inline uint32 __dhd_fixed_ring_get_read_idx(dhd_fixed_ring_info_t *ring)
{
    return ring->read_idx;
}

static inline uint32 __dhd_fixed_ring_get_write_idx(dhd_fixed_ring_info_t *ring)
{
    return ring->write_idx;
}

/* Sub functions for single index ring */
static inline void *
__dhd_singleidx_ring_get_first(dhd_singleidx_ring_info_t *ring)
{
    uint32 tmp_idx = 0;

    if (ring->idx == DHD_RING_IDX_INVALID) {
        return NULL;
    }

    if (ring->ring_overwrited) {
        tmp_idx = (ring->idx + 1) % ring->elem_cnt;
    }

    return (uint8 *)ring->elem + (ring->elem_size * tmp_idx);
}

static inline void *
__dhd_singleidx_ring_get_last(dhd_singleidx_ring_info_t *ring)
{
    if (ring->idx == DHD_RING_IDX_INVALID) {
        return NULL;
    }

    return (uint8 *)ring->elem + (ring->elem_size * ring->idx);
}

static inline void *
__dhd_singleidx_ring_get_empty(dhd_singleidx_ring_info_t *ring)
{
    if (ring->idx == DHD_RING_IDX_INVALID) {
        ring->idx = 0;
        return (uint8 *)ring->elem;
    }

    /* check the lock is held */
    if (atomic_read(&ring->ring_locked)) {
        return NULL;
    }

    /* check the index rollover */
    if (!ring->ring_overwrited && ring->idx == (ring->elem_cnt - 1)) {
        ring->ring_overwrited = 1;
    }

    ring->idx = (ring->idx + 1) % ring->elem_cnt;

    return (uint8 *)ring->elem + (ring->elem_size * ring->idx);
}

static inline void *
__dhd_singleidx_ring_get_next(dhd_singleidx_ring_info_t *ring, void *prev,
                              uint32 type)
{
    uint32 cur_idx;

    if (ring->idx == DHD_RING_IDX_INVALID) {
        DHD_RING_ERR(("EMPTY RING\n"));
        return NULL;
    }

    cur_idx = __dhd_ring_ptr2idx(ring, prev, "NEXT", type);
    if (cur_idx >= ring->elem_cnt) {
        return NULL;
    }

    if (cur_idx == ring->idx) {
        /* no more new record */
        return NULL;
    }

    cur_idx = (cur_idx + 1) % ring->elem_cnt;

    return (uint8 *)ring->elem + ring->elem_size * cur_idx;
}

static inline void *
__dhd_singleidx_ring_get_prev(dhd_singleidx_ring_info_t *ring, void *prev,
                              uint32 type)
{
    uint32 cur_idx;

    if (ring->idx == DHD_RING_IDX_INVALID) {
        DHD_RING_ERR(("EMPTY RING\n"));
        return NULL;
    }
    cur_idx = __dhd_ring_ptr2idx(ring, prev, "PREV", type);
    if (cur_idx >= ring->elem_cnt) {
        return NULL;
    }

    if (!ring->ring_overwrited && cur_idx == 0) {
        /* no more new record */
        return NULL;
    }

    cur_idx = (cur_idx + ring->elem_cnt - 1) % ring->elem_cnt;
    if (ring->ring_overwrited && cur_idx == ring->idx) {
        /* no more new record */
        return NULL;
    }

    return (uint8 *)ring->elem + ring->elem_size * cur_idx;
}

static inline void
__dhd_singleidx_ring_whole_lock(dhd_singleidx_ring_info_t *ring)
{
    if (!atomic_read(&ring->ring_locked)) {
        atomic_set(&ring->ring_locked, 1);
    }
}

static inline void
__dhd_singleidx_ring_whole_unlock(dhd_singleidx_ring_info_t *ring)
{
    if (atomic_read(&ring->ring_locked)) {
        atomic_set(&ring->ring_locked, 0);
    }
}

/* Get first element : oldest element */
void *dhd_ring_get_first(void *_ring)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    void *ret = NULL;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return NULL;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        ret = __dhd_fixed_ring_get_first(&ring->fixed);
    }
    if (ring->type == DHD_RING_TYPE_SINGLE_IDX) {
        ret = __dhd_singleidx_ring_get_first(&ring->single);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
    return ret;
}

/* Free first element : oldest element */
void dhd_ring_free_first(void *_ring)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        __dhd_fixed_ring_free_first(&ring->fixed);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
}

void dhd_ring_set_read_idx(void *_ring, uint32 read_idx)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        __dhd_fixed_ring_set_read_idx(&ring->fixed, read_idx);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
}

void dhd_ring_set_write_idx(void *_ring, uint32 write_idx)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        __dhd_fixed_ring_set_write_idx(&ring->fixed, write_idx);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
}

uint32 dhd_ring_get_read_idx(void *_ring)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    uint32 read_idx = DHD_RING_IDX_INVALID;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return read_idx;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        read_idx = __dhd_fixed_ring_get_read_idx(&ring->fixed);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);

    return read_idx;
}

uint32 dhd_ring_get_write_idx(void *_ring)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    uint32 write_idx = DHD_RING_IDX_INVALID;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return write_idx;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        write_idx = __dhd_fixed_ring_get_write_idx(&ring->fixed);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);

    return write_idx;
}

/* Get latest element */
void *dhd_ring_get_last(void *_ring)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    void *ret = NULL;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return NULL;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        ret = __dhd_fixed_ring_get_last(&ring->fixed);
    }
    if (ring->type == DHD_RING_TYPE_SINGLE_IDX) {
        ret = __dhd_singleidx_ring_get_last(&ring->single);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
    return ret;
}

/* Get next point can be written
 * will overwrite which doesn't read
 * will return NULL if next pointer is locked
 */
void *dhd_ring_get_empty(void *_ring)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    void *ret = NULL;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return NULL;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        ret = __dhd_fixed_ring_get_empty(&ring->fixed);
    }
    if (ring->type == DHD_RING_TYPE_SINGLE_IDX) {
        ret = __dhd_singleidx_ring_get_empty(&ring->single);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
    return ret;
}

void *dhd_ring_get_next(void *_ring, void *cur)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    void *ret = NULL;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return NULL;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        ret = __dhd_fixed_ring_get_next(&ring->fixed, cur, ring->type);
    }
    if (ring->type == DHD_RING_TYPE_SINGLE_IDX) {
        ret = __dhd_singleidx_ring_get_next(&ring->single, cur, ring->type);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
    return ret;
}

void *dhd_ring_get_prev(void *_ring, void *cur)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    void *ret = NULL;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return NULL;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        ret = __dhd_fixed_ring_get_prev(&ring->fixed, cur, ring->type);
    }
    if (ring->type == DHD_RING_TYPE_SINGLE_IDX) {
        ret = __dhd_singleidx_ring_get_prev(&ring->single, cur, ring->type);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
    return ret;
}

int dhd_ring_get_cur_size(void *_ring)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    int cnt = 0;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return cnt;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        cnt = __dhd_fixed_ring_get_cur_size(&ring->fixed);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
    return cnt;
}

/* protect element between lock_ptr and write_idx */
void dhd_ring_lock(void *_ring, void *first_ptr, void *last_ptr)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        __dhd_fixed_ring_lock(&ring->fixed, first_ptr, last_ptr, ring->type);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
}

/* free all lock */
void dhd_ring_lock_free(void *_ring)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        __dhd_fixed_ring_lock_free(&ring->fixed);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
}

void *dhd_ring_lock_get_first(void *_ring)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    void *ret = NULL;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return NULL;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        ret = __dhd_fixed_ring_lock_get_first(&ring->fixed);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
    return ret;
}

void *dhd_ring_lock_get_last(void *_ring)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    void *ret = NULL;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return NULL;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        ret = __dhd_fixed_ring_lock_get_last(&ring->fixed);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
    return ret;
}

int dhd_ring_lock_get_count(void *_ring)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    int ret = BCME_ERROR;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return ret;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        ret = __dhd_fixed_ring_lock_get_count(&ring->fixed);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
    return ret;
}

/* free first locked element */
void dhd_ring_lock_free_first(void *_ring)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_FIXED) {
        __dhd_fixed_ring_lock_free_first(&ring->fixed);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
}

void dhd_ring_whole_lock(void *_ring)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_SINGLE_IDX) {
        __dhd_singleidx_ring_whole_lock(&ring->single);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
}

void dhd_ring_whole_unlock(void *_ring)
{
    dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
    unsigned long flags;

    if (!ring || ring->magic != DHD_RING_MAGIC) {
        DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
        return;
    }

    DHD_RING_SYNC_LOCK(ring->ring_sync, flags);
    if (ring->type == DHD_RING_TYPE_SINGLE_IDX) {
        __dhd_singleidx_ring_whole_unlock(&ring->single);
    }
    DHD_RING_SYNC_UNLOCK(ring->ring_sync, flags);
}

#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 19, 0))
#define DHD_VFS_INODE(dir) (dir->d_inode)
#else
#define DHD_VFS_INODE(dir) d_inode(dir)
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3, 19, 0) */

#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0))
#define DHD_VFS_UNLINK(dir, b, c) vfs_unlink(DHD_VFS_INODE(dir), b)
#else
#define DHD_VFS_UNLINK(dir, b, c) vfs_unlink(DHD_VFS_INODE(dir), b, c)
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0) */

#if ((defined DHD_DUMP_MNGR) || (defined DNGL_AXI_ERROR_LOGGING))
int dhd_file_delete(char *path)
{
    struct path file_path;
    int err;
    struct dentry *dir;

    err = kern_path(path, 0, &file_path);
    if (err < 0) {
        DHD_ERROR(
            ("Failed to get kern-path delete file: %s error: %d\n", path, err));
        return err;
    }
    if (
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 13, 0))
        !d_is_file(file_path.dentry) ||
#if (LINUX_VERSION_CODE > KERNEL_VERSION(4, 1, 0))
        d_really_is_negative(file_path.dentry) ||
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(4, 1, 0) */
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 13, 0) */
        FALSE) {
        err = -EINVAL;
    } else {
        dir = dget_parent(file_path.dentry);
        if (!IS_ERR(dir)) {
            err = DHD_VFS_UNLINK(dir, file_path.dentry, NULL);
            dput(dir);
        } else {
            err = PTR_ERR(dir);
        }
    }

    path_put(&file_path);
    if (err < 0) {
        DHD_ERROR(("Failed to delete file: %s error: %d\n", path, err));
    }
    return err;
}
#endif

#ifdef DHD_DUMP_MNGR
static int dhd_dump_file_manage_idx(dhd_dump_file_manage_t *fm_ptr, char *fname)
{
    int i;
    int fm_idx = -1;

    for (i = 0; i < DHD_DUMP_TYPE_COUNT_MAX; i++) {
        if (strlen(fm_ptr->elems[i].type_name) == 0) {
            fm_idx = i;
            break;
        }
        if (!(strncmp(fname, fm_ptr->elems[i].type_name, strlen(fname)))) {
            fm_idx = i;
            break;
        }
    }

    if (fm_idx == -1) {
        return fm_idx;
    }

    if (strlen(fm_ptr->elems[fm_idx].type_name) == 0) {
        strncpy(fm_ptr->elems[fm_idx].type_name, fname,
                DHD_DUMP_TYPE_NAME_SIZE);
        fm_ptr->elems[fm_idx].type_name[DHD_DUMP_TYPE_NAME_SIZE - 1] = '\0';
        fm_ptr->elems[fm_idx].file_idx = 0;
    }

    return fm_idx;
}

/*
 * dhd_dump_file_manage_enqueue - enqueue dump file path
 * and delete odest file if file count is max.
 */
void dhd_dump_file_manage_enqueue(dhd_pub_t *dhd, char *dump_path, char *fname)
{
    int fm_idx;
    int fp_idx;
    dhd_dump_file_manage_t *fm_ptr;
    DFM_elem_t *elem;

    if (!dhd || !dhd->dump_file_manage) {
        DHD_ERROR(("%s(): dhdp=%p dump_file_manage=%p\n", __FUNCTION__, dhd,
                   (dhd ? dhd->dump_file_manage : NULL)));
        return;
    }

    fm_ptr = dhd->dump_file_manage;

    /* find file_manage idx */
    DHD_INFO(
        ("%s(): fname: %s dump_path: %s\n", __FUNCTION__, fname, dump_path));
    if ((fm_idx = dhd_dump_file_manage_idx(fm_ptr, fname)) < 0) {
        DHD_ERROR(("%s(): Out of file manager entries, fname: %s\n",
                   __FUNCTION__, fname));
        return;
    }

    elem = &fm_ptr->elems[fm_idx];
    fp_idx = elem->file_idx;
    DHD_INFO(("%s(): fm_idx: %d fp_idx: %d path: %s\n", __FUNCTION__, fm_idx,
              fp_idx, elem->file_path[fp_idx]));

    /* delete oldest file */
    if (strlen(elem->file_path[fp_idx]) != 0) {
        if (dhd_file_delete(elem->file_path[fp_idx]) < 0) {
            DHD_ERROR(("%s(): Failed to delete file: %s\n", __FUNCTION__,
                       elem->file_path[fp_idx]));
        } else {
            DHD_ERROR(("%s(): Successed to delete file: %s\n", __FUNCTION__,
                       elem->file_path[fp_idx]));
        }
    }

    /* save dump file path */
    strncpy(elem->file_path[fp_idx], dump_path, DHD_DUMP_FILE_PATH_SIZE);
    elem->file_path[fp_idx][DHD_DUMP_FILE_PATH_SIZE - 1] = '\0';

    /* change file index to next file index */
    elem->file_idx = (elem->file_idx + 1) % DHD_DUMP_FILE_COUNT_MAX;
}
#endif /* DHD_DUMP_MNGR */

#ifdef DHD_MAP_LOGGING
/* Will be called from SMMU fault handler */
void dhd_smmu_fault_handler(uint32 axid, ulong fault_addr)
{
    dhd_pub_t *dhdp = (dhd_pub_t *)g_dhd_pub;
    uint32 irq = (uint32)-1;

    DHD_ERROR(("%s: Trigger SMMU Fault\n", __FUNCTION__));
    DHD_ERROR(
        ("%s: axid:0x%x, fault_addr:0x%lx", __FUNCTION__, axid, fault_addr));
    dhdp->smmu_fault_occurred = TRUE;
#ifdef DNGL_AXI_ERROR_LOGGING
    dhdp->axi_error = TRUE;
    dhdp->axi_err_dump->axid = axid;
    dhdp->axi_err_dump->fault_address = fault_addr;
#endif /* DNGL_AXI_ERROR_LOGGING */

    /* Disable PCIe IRQ */
    dhdpcie_get_pcieirq(dhdp->bus, &irq);
    if (irq != (uint32)-1) {
        disable_irq_nosync(irq);
    }

    /* Take debug information first */
    DHD_OS_WAKE_LOCK(dhdp);
    dhd_prot_smmu_fault_dump(dhdp);
    DHD_OS_WAKE_UNLOCK(dhdp);

    /* Take AXI information if possible */
#ifdef DNGL_AXI_ERROR_LOGGING
#ifdef DHD_USE_WQ_FOR_DNGL_AXI_ERROR
    dhd_axi_error_dispatch(dhdp);
#else
    dhd_axi_error(dhdp);
#endif /* DHD_USE_WQ_FOR_DNGL_AXI_ERROR */
#endif /* DNGL_AXI_ERROR_LOGGING */
}
EXPORT_SYMBOL(dhd_smmu_fault_handler);
#endif /* DHD_MAP_LOGGING */

#ifdef DHD_WIFI_SHUTDOWN
void wifi_plat_dev_drv_shutdown(struct platform_device *pdev)
{
    dhd_pub_t *dhd_pub = NULL;
    dhd_info_t *dhd_info = NULL;
    dhd_if_t *dhd_if = NULL;

    DHD_ERROR(("%s enter\n", __FUNCTION__));
    dhd_pub = g_dhd_pub;

    if (dhd_os_check_if_up(dhd_pub)) {
        dhd_info = (dhd_info_t *)dhd_pub->info;
        dhd_if = dhd_info->iflist[0];
        ASSERT(dhd_if);
        ASSERT(dhd_if->net);
        if (dhd_if && dhd_if->net) {
            dhd_stop(dhd_if->net);
        }
    }
}
#endif /* DHD_WIFI_SHUTDOWN */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0))
int compat_kernel_read(struct file *file, loff_t offset, char *addr,
                       unsigned long count)
{
    return (int)kernel_read(file, addr, (size_t)count, &offset);
}
int compat_vfs_write(struct file *file, char *addr, int count, loff_t *offset)
{
    return (int)kernel_write(file, addr, count, offset);
}
#else
int compat_kernel_read(struct file *file, loff_t offset, char *addr,
                       unsigned long count)
{
    return kernel_read(file, offset, addr, count);
}
int compat_vfs_write(struct file *file, char *addr, int count, loff_t *offset)
{
    return (int)vfs_write(file, addr, count, offset);
}
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)) */

#ifdef DHDTCPSYNC_FLOOD_BLK
static void dhd_blk_tsfl_handler(struct work_struct *work)
{
    dhd_if_t *ifp = NULL;
    dhd_pub_t *dhdp = NULL;
    /* Ignore compiler warnings due to -Werror=cast-qual */
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif /* STRICT_GCC_WARNINGS  && __GNUC__ */
    ifp = container_of(work, dhd_if_t, blk_tsfl_work);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif /* STRICT_GCC_WARNINGS  && __GNUC__ */
    if (ifp) {
        dhdp = &ifp->info->pub;
        if (dhdp) {
            if ((dhdp->op_mode & DHD_FLAG_P2P_GO_MODE) ||
                (dhdp->op_mode & DHD_FLAG_HOSTAP_MODE)) {
                DHD_ERROR(("Disassoc due to TCP SYNC FLOOD ATTACK\n"));
                wl_cfg80211_del_all_sta(ifp->net, WLAN_REASON_UNSPECIFIED);
            } else if ((dhdp->op_mode & DHD_FLAG_P2P_GC_MODE) ||
                       (dhdp->op_mode & DHD_FLAG_STA_MODE)) {
                DHD_ERROR(("Diconnect due to TCP SYNC FLOOD ATTACK\n"));
                wl_cfg80211_disassoc(ifp->net, WLAN_REASON_UNSPECIFIED);
            }
        }
    }
}
void dhd_reset_tcpsync_info_by_ifp(dhd_if_t *ifp)
{
    ifp->tsync_rcvd = 0;
    ifp->tsyncack_txed = 0;
    ifp->last_sync = DIV_U64_BY_U32(OSL_LOCALTIME_NS(), NSEC_PER_SEC);
}
void dhd_reset_tcpsync_info_by_dev(struct net_device *dev)
{
    dhd_if_t *ifp = NULL;
    if (dev) {
        ifp = DHD_DEV_IFP(dev);
    }
    if (ifp) {
        ifp->tsync_rcvd = 0;
        ifp->tsyncack_txed = 0;
        ifp->last_sync = DIV_U64_BY_U32(OSL_LOCALTIME_NS(), NSEC_PER_SEC);
    }
}
#endif /* DHDTCPSYNC_FLOOD_BLK */

#ifdef DHD_4WAYM4_FAIL_DISCONNECT
static void dhd_m4_state_handler(struct work_struct *work)
{
    dhd_if_t *ifp = NULL;
    /* Ignore compiler warnings due to -Werror=cast-qual */
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
    struct delayed_work *dw = to_delayed_work(work);
    ifp = container_of(dw, dhd_if_t, m4state_work);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
    if (ifp && ifp->net &&
        (OSL_ATOMIC_READ(ifp->info->pub->osh, &ifp->m4state) == M4_TXFAILED)) {
        DHD_ERROR(
            ("Disassoc for 4WAY_HANDSHAKE_TIMEOUT at %s\n", ifp->net->name));
        wl_cfg80211_disassoc(ifp->net, WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT);
    }
}

void dhd_eap_txcomplete(dhd_pub_t *dhdp, void *txp, bool success, int ifidx)
{
    dhd_info_t *dhd = (dhd_info_t *)(dhdp->info);
    struct ether_header *eh;
    uint16 type;

    if (!success) {
        dhd_prot_hdrpull(dhdp, NULL, txp, NULL, NULL);

        eh = (struct ether_header *)PKTDATA(dhdp->osh, txp);
        type = ntoh16(eh->ether_type);
        if (type == ETHER_TYPE_802_1X) {
            if (dhd_is_4way_msg((uint8 *)eh) == EAPOL_4WAY_M4) {
                dhd_if_t *ifp = NULL;
                ifp = dhd->iflist[ifidx];
                if (!ifp || !ifp->net) {
                    return;
                }

                DHD_INFO(("%s: M4 TX failed on %d.\n", __FUNCTION__, ifidx));

                OSL_ATOMIC_SET(dhdp->osh, &ifp->m4state, M4_TXFAILED);
                schedule_delayed_work(&ifp->m4state_work,
                                      msecs_to_jiffies(MAX_4WAY_TIMEOUT_MS));
            }
        }
    }
}

void dhd_cleanup_m4_state_work(dhd_pub_t *dhdp, int ifidx)
{
    dhd_info_t *dhdinfo;
    dhd_if_t *ifp;

    if ((ifidx < 0) || (ifidx >= DHD_MAX_IFS)) {
        DHD_ERROR(("%s: invalid ifidx %d\n", __FUNCTION__, ifidx));
        return;
    }

    dhdinfo = (dhd_info_t *)(dhdp->info);
    if (!dhdinfo) {
        DHD_ERROR(("%s: dhdinfo is NULL\n", __FUNCTION__));
        return;
    }

    ifp = dhdinfo->iflist[ifidx];
    if (ifp) {
        cancel_delayed_work_sync(&ifp->m4state_work);
    }
}
#endif /* DHD_4WAYM4_FAIL_DISCONNECT */

#ifdef DHD_HP2P
unsigned long dhd_os_hp2plock(dhd_pub_t *pub)
{
    dhd_info_t *dhd;
    unsigned long flags = 0;

    dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        spin_lock_irqsave(&dhd->hp2p_lock, flags);
    }

    return flags;
}

void dhd_os_hp2punlock(dhd_pub_t *pub, unsigned long flags)
{
    dhd_info_t *dhd;

    dhd = (dhd_info_t *)(pub->info);

    if (dhd) {
        spin_unlock_irqrestore(&dhd->hp2p_lock, flags);
    }
}
#endif /* DHD_HP2P */
#ifdef DNGL_AXI_ERROR_LOGGING
static void dhd_axi_error_dump(void *handle, void *event_info, u8 event)
{
    dhd_info_t *dhd = (dhd_info_t *)handle;
    dhd_pub_t *dhdp = NULL;

    if (!dhd) {
        DHD_ERROR(("%s: dhd is NULL\n", __FUNCTION__));
        goto exit;
    }

    dhdp = &dhd->pub;
    if (!dhdp) {
        DHD_ERROR(("%s: dhdp is NULL\n", __FUNCTION__));
        goto exit;
    }

    /**
     * First save axi error information to a file
     * because panic should happen right after this.
     * After dhd reset, dhd reads the file, and do hang event process
     * to send axi error stored on the file to Bigdata server
     */
    if (dhdp->axi_err_dump->etd_axi_error_v1.version !=
        HND_EXT_TRAP_AXIERROR_VERSION_1) {
        DHD_ERROR(("%s: Invalid AXI version: 0x%x\n", __FUNCTION__,
                   dhdp->axi_err_dump->etd_axi_error_v1.version));
    }

    DHD_OS_WAKE_LOCK(dhdp);
#ifdef DHD_FW_COREDUMP
#ifdef DHD_SSSR_DUMP
    dhdp->collect_sssr = TRUE;
#endif /* DHD_SSSR_DUMP */
    DHD_ERROR(("%s: scheduling mem dump.. \n", __FUNCTION__));
    dhd_schedule_memdump(dhdp, dhdp->soc_ram, dhdp->soc_ram_length);
#endif /* DHD_FW_COREDUMP */
    DHD_OS_WAKE_UNLOCK(dhdp);

exit:
    /* Trigger kernel panic after taking necessary dumps */
    BUG_ON(1);
}

void dhd_schedule_axi_error_dump(dhd_pub_t *dhdp, void *type)
{
    DHD_ERROR(("%s: scheduling axi_error_dump.. \n", __FUNCTION__));
    dhd_deferred_schedule_work(dhdp->info->dhd_deferred_wq, type,
                               DHD_WQ_WORK_AXI_ERROR_DUMP, dhd_axi_error_dump,
                               DHD_WQ_WORK_PRIORITY_HIGH);
}
#endif /* DNGL_AXI_ERROR_LOGGING */

#ifdef BCMPCIE
static void dhd_cto_recovery_handler(void *handle, void *event_info, u8 event)
{
    dhd_info_t *dhd = handle;
    dhd_pub_t *dhdp = NULL;

    if (!dhd) {
        DHD_ERROR(("%s: dhd is NULL\n", __FUNCTION__));
        BUG_ON(1);
        return;
    }

    dhdp = &dhd->pub;
    dhdpcie_cto_recovery_handler(dhdp);
}

void dhd_schedule_cto_recovery(dhd_pub_t *dhdp)
{
    DHD_ERROR(("%s: scheduling cto recovery.. \n", __FUNCTION__));
    dhd_deferred_schedule_work(
        dhdp->info->dhd_deferred_wq, NULL, DHD_WQ_WORK_CTO_RECOVERY,
        dhd_cto_recovery_handler, DHD_WQ_WORK_PRIORITY_HIGH);
}
#endif /* BCMPCIE */

#ifdef SUPPORT_SET_TID
/*
 * Set custom TID value for UDP frame based on UID value.
 * This will be triggered by ohos private command below.
 * DRIVER SET_TID <Mode:uint8> <Target UID:uint32> <Custom TID:uint8>
 * Mode 0(SET_TID_OFF) : Disable changing TID
 * Mode 1(SET_TID_ALL_UDP) : Change TID for all UDP frames
 * Mode 2(SET_TID_BASED_ON_UID) : Change TID for UDP frames based on target UID
 */
void dhd_set_tid_based_on_uid(dhd_pub_t *dhdp, void *pkt)
{
    struct ether_header *eh = NULL;
    struct sock *sk = NULL;
    uint8 *pktdata = NULL;
    uint8 *ip_hdr = NULL;
    uint8 cur_prio;
    uint8 prio;
    uint32 uid;

    if (dhdp->tid_mode == SET_TID_OFF) {
        return;
    }

    pktdata = (uint8 *)PKTDATA(dhdp->osh, pkt);
    eh = (struct ether_header *)pktdata;
    ip_hdr = (uint8 *)eh + ETHER_HDR_LEN;

    if (IPV4_PROT(ip_hdr) != IP_PROT_UDP) {
        return;
    }

    cur_prio = PKTPRIO(pkt);
    prio = dhdp->target_tid;
    uid = dhdp->target_uid;

    if ((cur_prio == prio) || (cur_prio != PRIO_8021D_BE)) {
        return;
    }

    sk = ((struct sk_buff *)(pkt))->sk;

    if ((dhdp->tid_mode == SET_TID_ALL_UDP) ||
        (sk && (uid == __kuid_val(sock_i_uid(sk))))) {
        PKTSETPRIO(pkt, prio);
    }
}
#endif /* SUPPORT_SET_TID */

void *dhd_get_pub(struct net_device *dev)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhdinfo = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhdinfo = *(dhd_info_t **)netdev_priv(dev);
#endif
    if (dhdinfo) {
        return (void *)&dhdinfo->pub;
    } else {
        printf("%s: null dhdinfo\n", __FUNCTION__);
        return NULL;
    }
}

void *dhd_get_conf(struct net_device *dev)
{
#ifdef CONFIG_AP6XXX_WIFI6_HDF
    dhd_info_t *dhdinfo = *(dhd_info_t **)DHD_DEV_PRIV(dev);
#else
    dhd_info_t *dhdinfo = *(dhd_info_t **)netdev_priv(dev);
#endif
    if (dhdinfo) {
        return (void *)dhdinfo->pub.conf;
    } else {
        printf("%s: null dhdinfo\n", __FUNCTION__);
        return NULL;
    }
}

bool dhd_os_wd_timer_enabled(void *bus)
{
    dhd_pub_t *pub = bus;
    dhd_info_t *dhd = (dhd_info_t *)pub->info;

    DHD_TRACE(("%s: Enter\n", __FUNCTION__));
    if (!dhd) {
        DHD_ERROR(("%s: dhd NULL\n", __FUNCTION__));
        return FALSE;
    }
    return dhd->wd_timer_valid;
}

#if defined(WLDWDS) && defined(FOURADDR_AUTO_BRG)
/* This function is to automatically add/del interface to the bridged dev that
 * priamy dev is in */
static void dhd_bridge_dev_set(dhd_info_t *dhd, int ifidx,
                               struct net_device *dev)
{
    struct net_device *primary_ndev = NULL, *br_dev = NULL;
    int cmd;
    struct ifreq ifr;

    /* add new interface to bridge dev */
    if (dev) {
        int found = 0, i;
        DHD_ERROR(("bssidx %d\n", dhd->pub.info->iflist[ifidx]->bssidx));
        for (i = 0; i < ifidx; i++) {
            DHD_ERROR(("bssidx %d %d\n", i, dhd->pub.info->iflist[i]->bssidx));
            /* search the primary interface */
            if (dhd->pub.info->iflist[i]->bssidx ==
                dhd->pub.info->iflist[ifidx]->bssidx) {
                primary_ndev = dhd->pub.info->iflist[i]->net;
                DHD_ERROR(("%dst is primary dev %s\n", i, primary_ndev->name));
                found = 1;
                break;
            }
        }
        if (found == 0) {
            DHD_ERROR(("Can not find primary dev %s\n", dev->name));
            return;
        }
        cmd = SIOCBRADDIF;
        ifr.ifr_ifindex = dev->ifindex;
    } else { /* del interface from bridge dev */
        primary_ndev = dhd->pub.info->iflist[ifidx]->net;
        cmd = SIOCBRDELIF;
        ifr.ifr_ifindex = primary_ndev->ifindex;
    }
    /* if primary net device is bridged */
    if (primary_ndev->priv_flags & IFF_BRIDGE_PORT) {
        rtnl_lock();
        /* get bridge device */
        br_dev = netdev_master_upper_dev_get(primary_ndev);
        if (br_dev) {
            const struct net_device_ops *ops = br_dev->netdev_ops;
            DHD_ERROR(("br %s pri %s\n", br_dev->name, primary_ndev->name));
            if (ops) {
                if (cmd == SIOCBRADDIF) {
                    DHD_ERROR(("br call ndo_add_slave\n"));
                    ops->ndo_add_slave(br_dev, dev);
                    /* Also bring wds0.x interface up automatically */
                    dev_change_flags(dev, dev->flags | IFF_UP);
                } else {
                    DHD_ERROR(("br call ndo_del_slave\n"));
                    ops->ndo_del_slave(br_dev, primary_ndev);
                }
            }
        } else {
            DHD_ERROR(("no br dev\n"));
        }
        rtnl_unlock();
    } else {
        DHD_ERROR(("device %s is not bridged\n", primary_ndev->name));
    }
}
#endif /* defiend(WLDWDS) && defined(FOURADDR_AUTO_BRG) */
